Google Chrome浏览器可以使用很多命令行。 一些更改功能的行为，其他用于调试或试验。 该页面列出了可用的开关，包括其条件和说明。 上一次自动更新发生在2020-08-12。
| Condition | Explanation |
|---|---|
| --force-happiness-tracking-system ⊗ | Force enables the Happiness Tracking System for the device. This ignores user profile check and time limits and shows the notification every time for any type of user. Should be used only for testing. ↪ |
| --force-high-contrast ⊗ | Forces high-contrast mode in native UI drawing, regardless of system settings. Note that this has limited effect on Windows: only Aura colors will be switched to high contrast, not other system colors. ↪ |
| --force-hwid-check-failure-for-test ⊗ | Forces Hardware ID check (happens during OOBE) to fail. Should be used only for testing. ↪ |
| --force-legacy-default-referrer-policy ⊗ | Pins the default referrer policy to the pre-M80 value of no-referrer-when-downgrade. TODO(crbug.com/1016541): After M82, remove when the corresponding enterprise policy has been deleted. ↪ |
| --force-login-manager-in-tests ⊗ | Usually in browser tests the usual login manager bringup is skipped so that tests can change how it's brought up. This flag disables that. ↪ |
| --force-logs-upload-failure ⊗ | Force a logs upload failure to help test the logs upload retry. ↪ |
| --force-max-texture-size ⊗ | Sets the maximum texture size in pixels. ↪ |
| --force-media-resolution-height ⊗ | When present overrides the screen resolution used by CanDisplayType API, instead of using the values obtained from avsettings. ↪ |
| --force-media-resolution-width ⊗ | No description ↪ |
| --force-overlay-fullscreen-video ⊗ | Forces use of hardware overlay for fullscreen video playback. Useful for testing the Android overlay fullscreen functionality on other platforms. ↪ |
| --force-pnacl-subzero ⊗ | Force use of the Subzero as the PNaCl translator instead of LLC. ↪ |
| --force-prefers-reduced-motion ⊗ | Forces whether the user desires reduced motion, regardless of system settings. ↪ |
| --force-presentation-receiver-for-testing ⊗ | This forces pages to be loaded as presentation receivers. Useful for testing behavior specific to presentation receivers. Spec: https://www.w3.org/TR/presentation-api/#interface-presentationreceiver ↪ |
| --force-protected-video-output-buffers[16] ⊗ | Forces protected memory for all output video buffers generated by FuchsiaVideoDecoder, including unencrypted streams. Ignored unless --enable-protected-video-buffers is also specified. ↪ |
| --force-raster-color-profile ⊗ | Force rastering to take place in the specified color profile. Accepted values are the same as for the kForceDisplayColorProfile case above. ↪ |
| --force-recovery-component ⊗ | Force the recovery component, when running an unofficial build. This only applies to the cleaner, not the reporter. ↪ |
| --force-renderer-accessibility ⊗ | Force renderer accessibility to be on instead of enabling it on demand when a screen reader is detected. The disable-renderer-accessibility switch overrides this if present. ↪ |
| --force-self-delete ⊗ | Force self-deletion even on non-official builds. ↪ |
| --force-show-update-menu-badge[7] ⊗ | Forces the update menu badge to show. ↪ |
| --force-stacked-tab-strip-layout ⊗ | Forces Chrome to use a stacked tab strip layout. ↪ |
| --force-status-area-collapsible ⊗ | Forces the status area to allow collapse/expand regardless of the current state. ↪ |
| --force-system-compositor-mode ⊗ | Force system compositor mode when set. ↪ |
| --force-tablet-mode ⊗ | Enables required things for the selected UI mode, regardless of whether the Chromebook is currently in the selected UI mode. ↪ |
| --force-tablet-power-button ⊗ | If set, tablet-like power button behavior (i.e. tapping the button turns the screen off) is used even if the device is in laptop mode. ↪ |
| --force-text-direction ⊗ | Force the text rendering to a specific direction. Valid values are "ltr" (left-to-right) and "rtl" (right-to-left). Only tested meaningfully with RTL. ↪ |
| --force-ui-direction ⊗ | Force the UI to a specific direction. Valid values are "ltr" (left-to-right) and "rtl" (right-to-left). ↪ |
| --force-update-menu-type[7] ⊗ | Forces the update menu type to a specific type. ↪ |
| --force-update-remote-url ⊗ | Per-product customization of force update UI remote url, also used in testing. ↪ |
| --force-variation-ids ⊗ | Forces additional Chrome Variation Ids that will be sent in X-Client-Data header, specified as a 64-bit encoded list of numeric experiment ids. Ids prefixed with the character "t" will be treated as Trigger Variation Ids. ↪ |
| --force-video-overlays ⊗ | Force media player using SurfaceView instead of SurfaceTexture on Android. ↪ |
| --force-wave-audio[1] ⊗ | Use Windows WaveOut/In audio API even if Core Audio is supported. ↪ |
| --force-webrtc-ip-handling-policy ⊗ | Override WebRTC IP handling policy to mimic the behavior when WebRTC IP handling policy is specified in Preferences. ↪ |
| --force-webxr-runtime ⊗ | Forcibly enable and select the specified runtime for webxr. Note that this provides an alternative means of enabling a runtime, and will also functionally disable all other runtimes. ↪ |
| --frame-throttle-fps ⊗ | Sets the throttle fps for compositor frame submission. ↪ |
| --full-memory-crash-report ⊗ | Generates full memory crash dump. ↪ |
| --gaia-config ⊗ | No description ↪ |
| --gaia-url ⊗ | No description ↪ |
| --gamepad-polling-interval ⊗ | Overrides the gamepad polling interval. Decreasing the interval improves input latency of buttons and axes but may negatively affect performance due to more CPU time spent in the input polling thread. ↪ |
| --gcm-checkin-url ⊗ | Sets the checkin service endpoint that will be used for performing Google Cloud Messaging checkins. ↪ |
| --gcm-mcs-endpoint ⊗ | Sets the Mobile Connection Server endpoint that will be used for Google Cloud Messaging. ↪ |
| --gcm-registration-url ⊗ | Sets the registration endpoint that will be used for creating new Google Cloud Messaging registrations. ↪ |
| --generate-accessibility-test-expectations ⊗ | For development / testing only. When running content_browsertests, saves output of failing accessibility tests to their expectations files in content/test/data/accessibility/, overwriting existing file content. ↪ |
| --gl ⊗ | No description ↪ |
| --gl-egl ⊗ | No description ↪ |
| --gl-null ⊗ | No description ↪ |
| --gl-shader-interm-output ⊗ | Include ANGLE's intermediate representation (AST) output in shader compilation info logs. ↪ |
| --gles ⊗ | No description ↪ |
| --gles-egl ⊗ | No description ↪ |
| --gles-null ⊗ | No description ↪ |
| --google-apis-url ⊗ | No description ↪ |
| --google-base-url ⊗ | Specifies an alternate URL to use for speaking to Google. Useful for testing. ↪ |
| --google-doodle-url ⊗ | Overrides the URL used to fetch the current Google Doodle. Example: https://www.google.com/async/ddljson Testing? Try: https://www.gstatic.com/chrome/ntp/doodle_test/ddljson_android0.json https://www.gstatic.com/chrome/ntp/doodle_test/ddljson_android1.json https://www.gstatic.com/chrome/ntp/doodle_test/ddljson_android2.json https://www.gstatic.com/chrome/ntp/doodle_test/ddljson_android3.json https://www.gstatic.com/chrome/ntp/doodle_test/ddljson_android4.json ↪ |
| --google-url ⊗ | No description ↪ |
| --gpu ⊗ | No description ↪ |
| --gpu-blocklist-test-group ⊗ | Select a different set of GPU blocklist entries with the specified test_group ID. ↪ |
| --gpu-device-id ⊗ | Passes the active graphics device id from browser process to info collection GPU process. ↪ |
| --gpu-driver-bug-list-test-group ⊗ | Enable an extra set of GPU driver bug list entries with the specified test_group ID. Note the default test group (group 0) is still active. ↪ |
| --gpu-driver-version ⊗ | Passes the active graphics driver version from browser process to info collection GPU process. ↪ |
| --gpu-launcher ⊗ | Extra command line options for launching the GPU process (normally used for debugging). Use like renderer-cmd-prefix. ↪ |
| --gpu-no-context-lost ⊗ | Inform Chrome that a GPU context will not be lost in power saving mode, screen saving mode, etc. Note that this flag does not ensure that a GPU context will never be lost in any situations, say, a GPU reset. ↪ |
| --gpu-preferences ⊗ | Passes encoded GpuPreferences to GPU process. ↪ |
| --gpu-process ⊗ | Flags spied upon from other layers. ↪ |
| --gpu-program-cache-size-kb ⊗ | Sets the maximum size of the in-memory gpu program cache, in kb ↪ |
| --gpu-rasterization-msaa-sample-count ⊗ | The number of multisample antialiasing samples for GPU rasterization. Requires MSAA support on GPU to have an effect. 0 disables MSAA. ↪ |
| --gpu-revision ⊗ | Passes the active graphics revision info from browser process to info collection GPU process. ↪ |
| --gpu-sandbox-allow-sysv-shm ⊗ | Allows shmat() system call in the GPU sandbox. ↪ |
| --gpu-sandbox-failures-fatal ⊗ | Makes GPU sandbox failures fatal. ↪ |
| --gpu-sandbox-start-early ⊗ | Starts the GPU sandbox before creating a GL context. ↪ |
| --gpu-startup-dialog ⊗ | Causes the GPU process to display a dialog on launch. ↪ |
| --gpu-sub-system-id ⊗ | Passes the active graphics sub system id from browser process to info collection GPU process. ↪ |
| --gpu-vendor-id ⊗ | Passes the active graphics vendor id from browser process to info collection GPU process. ↪ |
| --gpu2-startup-dialog[1] ⊗ | Causes the second GPU process used for gpu info collection to display a dialog on launch. ↪ |
| --graphics-buffer-count ⊗ | No description ↪ |
| --guest[15] ⊗ | Causes the browser to launch directly in guest mode. ↪ |
| --guest-wallpaper-large ⊗ | Large wallpaper to use in guest mode (as path to trusted, non-user-writable JPEG file). ↪ |
| --guest-wallpaper-small ⊗ | Small wallpaper to use in guest mode (as path to trusted, non-user-writable JPEG file). ↪ |
| --h[9] ⊗ | No description ↪ |
| --has-chromeos-keyboard ⊗ | If set, the system is a Chromebook with a "standard Chrome OS keyboard", which generally means one with a Search key in the standard Caps Lock location above the Left Shift key. It should be unset for Chromebooks with both Search and Caps Lock keys (e.g. stout) and for devices like Chromeboxes that only use external keyboards. ↪ |
| --has-internal-stylus ⊗ | Whether this device has an internal stylus. ↪ |
| --headless ⊗ | Run in headless mode, i.e., without a UI or display server dependencies. ↪ |
| --help ⊗ | No description ↪ |
| --hermes-fake ⊗ | Enables Hermes fake behavior. By default, no carrier profiles are setup. If a value of "on" is passed for this switch, then hermes fakes are initialized with a single installed carrier profile. Fake cellular service corresponding to carrier profiles are also setup in Shill. ↪ |
| --hide ⊗ | "Hide" value for kCrosRegionsMode (VPD values are hidden). ↪ |
| --hide-android-files-in-files-app ⊗ | If true, files in Android internal storage will be hidden in Files app. ↪ |
| --hide-icons[1] ⊗ | Makes Windows happy by allowing it to show "Enable access to this program" checkbox in Add/Remove Programs->Set Program Access and Defaults. This only shows an error box because the only way to hide Chrome is by uninstalling it. ↪ |
| --hide-scrollbars ⊗ | Hide scrollbars from screenshots. ↪ |
| --highlight-all-webviews ⊗ | Highlight the contents (including web contents) of all WebViews with a yellow tint. This is useful for identifying WebViews in an Android application. ↪ |
| --highlight-non-lcd-text-layers ⊗ | Highlights layers that can't use lcd text. Layers containing no text won't be highlighted. See DebugColors::NonLCDTextHighlightColor() for the colors. ↪ |
| --homedir ⊗ | Defines user homedir. This defaults to primary user homedir. ↪ |
| --homepage ⊗ | Specifies which page will be displayed in newly-opened tabs. We need this for testing purposes so that the UI tests don't depend on what comes up for http://google.com. ↪ |
| --host ⊗ | No description ↪ |
| --host-resolver-rules ⊗ | These mappings only apply to the host resolver. ↪ |
| --https://chromemediarecommendations-pa.googleapis.com ⊗ | No description ↪ |
| --icon_reader[1] ⊗ | No description ↪ |
| --ignore-autocomplete-off-autofill ⊗ | Ignores autocomplete="off" for Autofill data (profiles + credit cards). ↪ |
| --ignore-certificate-errors-spki-list ⊗ | A set of public key hashes for which to ignore certificate-related errors. If the certificate chain presented by the server does not validate, and one or more certificates have public key hashes that match a key from this list, the error is ignored. The switch value must a be a comma-separated list of Base64-encoded SHA-256 SPKI Fingerprints (RFC 7469, Section 2.4). This switch has no effect unless --user-data-dir (as defined by the content embedder) is also present. ↪ |
| --ignore-google-port-numbers ⊗ | When set, this will ignore the PortPermission passed in the google_util.h methods and ignore the port numbers. This makes it easier to run tests for features that use these methods (directly or indirectly) with the EmbeddedTestServer, which is more representative of production. ↪ |
| --ignore-gpu-blacklist ⊗ | Ignores GPU blocklist. TODO(crbug.com/1101491): remove in 2020Q4 in favor of --ignore-gpu-blocklist. ↪ |
| --ignore-gpu-blocklist ⊗ | Ignores GPU blocklist. ↪ |
| --ignore-previews-blacklist ⊗ | Ignore decisions made by PreviewsBlockList. TODO(crbug.com/1092105) : Migrate this to ignore-previews-blacklist. ↪ |
| --ignore-urlfetcher-cert-requests ⊗ | Causes net::URLFetchers to ignore requests for SSL client certificates, causing them to attempt an unauthenticated SSL/TLS session. This is intended for use when testing various service URLs (eg: kPromoServerURL, kSbURLPrefix, kSyncServiceURL, etc). ↪ |
| --ignore-user-profile-mapping-for-tests ⊗ | If true, profile selection in UserManager will always return active user's profile. TODO(nkostlyev): http://crbug.com/364604 - Get rid of this switch after we turn on multi-profile feature on ChromeOS. ↪ |
| --ime[5] ⊗ | No description ↪ |
| --in-process-gpu ⊗ | Run the GPU process as a thread in the browser process. ↪ |
| --incognito ⊗ | No description ↪ |
| --init-done-notifier ⊗ | The handle of an event to signal when the initialization of the main process is complete (including loading all DLL's). This is used by the integration test to check that forbidden modules aren't loaded outside the sandbox. If this is set, the main process will signal the event and then wait for the integration test to signal it as well before continuing. Ignored in official builds. ↪ |
| --initial-virtual-time ⊗ | Start the renderer with an initial virtual time override specified in seconds since the epoch. ↪ |
| --input ⊗ | No description ↪ |
| --install-autogenerated-theme ⊗ | Installs an autogenerated theme based on the given RGB value. The format is "r,g,b", where r, g, b are a numeric values from 0 to 255. ↪ |
| --install-chrome-app ⊗ | Causes Chrome to initiate an installation flow for the given app. ↪ |
| --install-managed-bookmarks-handler ⊗ | Installs the managed bookmarks policy handler. ↪ |
| --install-supervised-user-whitelists ⊗ | A list of whitelists to install for a supervised user, for testing. The list is of the following form: <id>[:<name>],[<id>[:<name>],...] ↪ |
| --install-url-blocklist-handlers ⊗ | Installs the URLBlocklist and URLAllowlist handlers. ↪ |
| --instant-process ⊗ | Marks a renderer as an Instant process. ↪ |
| --integration-test-timeout-minutes ⊗ | Set the timeout for integration tests in minutes. 0 disables the timeout entirely. ↪ |
| --ipc-connection-timeout ⊗ | Overrides the timeout, in seconds, that a child process waits for a connection from the browser before killing itself. ↪ |
| --ipc-dump-directory[18] ⊗ | Dumps IPC messages sent from renderer processes to the browser process to the given directory. Used primarily to gather samples for IPC fuzzing. ↪ |
| --ipc-fuzzer-testcase[18] ⊗ | Specifies the testcase used by the IPC fuzzer. ↪ |
| --isolate-origins ⊗ | Require dedicated processes for a set of origins, specified as a comma-separated list. For example: --isolate-origins=https://www.foo.com,https://www.bar.com ↪ |
| --javascript-harmony ⊗ | Enables experimental Harmony (ECMAScript 6) features. ↪ |
| --js-flags ⊗ | Specifies the flags passed to JS engine. ↪ |
| --kaleidoscope-backend-url ⊗ | A command line switch for overriding the base URL of the API. ↪ |
| --keep-alive-for-test ⊗ | Used for testing - keeps browser alive after last browser window closes. ↪ |
| --kernelnext-restrict-vms ⊗ | If set, the Chrome settings will not expose the option to enable crostini unless the enable-experimental-kernel-vm-support flag is set in chrome://flags ↪ |
| --kiosk ⊗ | Enable kiosk mode. Please note this is not Chrome OS kiosk mode. ↪ |
| --kiosk-printing ⊗ | Enable automatically pressing the print button in print preview. ↪ |
| --lacros-chrome-additional-args ⊗ | If this switch is set, then ash-chrome will pass additional arguments when launching lacros-chrome. The string '####' is used as a delimiter. Example: --lacros-chrome-additional-args="--foo=5####--bar=/tmp/dir name". Will result in two arguments passed to lacros-chrome: --foo=5 --bar=/tmp/dir name ↪ |
| --lacros-chrome-path ⊗ | If this switch is set, then ash-chrome will exec the lacros-chrome binary from the indicated path rather than from component updater. Note that the path should be to a directory that contains a binary named 'chrome'. ↪ |
| --lang ⊗ | The language file that we want to try to open. Of the form language[-country] where language is the 2 letter code from ISO-639. ↪ |
| --last-launched-app ⊗ | Pass the app id information to the renderer process, to be used for logging. last-launched-app should be the app that just launched and is spawning the renderer. ↪ |
| --layer ⊗ | No description ↪ |
| --light ⊗ | No description ↪ |
| --lite-video-default-downlink-bandwidth-kbps ⊗ | The default downlink bandwidth estimate used for throttling media requests. Only used when forcing LiteVideos to be allowed. ↪ |
| --lite-video-force-coinflip-holdback ⊗ | Forces the coinflip used for a counterfactual experiment to be true. ↪ |
| --lite-video-force-override-decision ⊗ | Overrides all the LiteVideo decision logic to allow it on every navigation. This causes LiteVideos to ignore the hints, user blocklist, and network condition. ↪ |
| --lite-video-ignore-network-conditions ⊗ | Overrides the network conditions checks for LiteVideos. ↪ |
| --load-and-launch-app ⊗ | Loads an app from the specified directory and launches it. ↪ |
| --load-apps ⊗ | Comma-separated list of paths to apps to load at startup. The first app in the list will be launched. ↪ |
| --load-empty-dll ⊗ | Attempt to load empty-dll.dll whenever this flag is set. For testing DLL loading. ↪ |
| --load-extension ⊗ | Comma-separated list of paths to extensions to load at startup. ↪ |
| --load-media-router-component-extension ⊗ | Loads the Media Router component extension on startup. ↪ |
| --load-signin-profile-test-extension[5] ⊗ | Path to the unpacked test extension to load into the signin profile. The ID extension loaded must match kTestSigninProfileExtensionId. ↪ |
| --local-sync-backend-dir ⊗ | Specifies the local sync backend directory. The name is chosen to mimic user-data-dir etc. This flag only matters if the enable-local-sync-backend flag is present. ↪ |
| --log-best-effort-tasks ⊗ | Logs information about all tasks posted with TaskPriority::BEST_EFFORT. Use this to diagnose issues that are thought to be caused by TaskPriority::BEST_EFFORT execution fences. Note: Tasks posted to a non-BEST_EFFORT UpdateableSequencedTaskRunner whose priority is later lowered to BEST_EFFORT are not logged. ↪ |
| --log-file ⊗ | Overrides the default file name to use for general-purpose logging (does not affect which events are logged). ↪ |
| --log-gpu-control-list-decisions ⊗ | Logs GPU control list decisions when enforcing blacklist rules. ↪ |
| --log-interface-calls-to ⊗ | Specifies a file to log all the interface calls of EngineRequestsImpl and CleanerEngineRequestsImpl. ↪ |
| --log-level ⊗ | Sets the minimum log level. Valid values are from 0 to 3: INFO = 0, WARNING = 1, LOG_ERROR = 2, LOG_FATAL = 3. ↪ |
| --log-net-log ⊗ | Enables saving net log events to a file. If a value is given, it used as the path the the file, otherwise the file is named netlog.json and placed in the user data directory. ↪ |
| --log-on-ui-double-background-blur[19] ⊗ | Checks and logs double background blur as an error if any. ↪ |
| --log-with-hash ⊗ | Log user actions with action name hashed. ↪ |
| --log-without-hash ⊗ | Log user actions with action name unhashed. ↪ |
| --login-manager ⊗ | Enables Chrome-as-a-login-manager behavior. ↪ |
| --login-profile ⊗ | Specifies the profile to use once a chromeos user is logged in. This parameter is ignored if user goes through login screen since user_id hash defines which profile directory to use. In case of browser restart within active session this parameter is used to pass user_id hash for primary user. ↪ |
| --login-user ⊗ | Specifies the user which is already logged in. ↪ |
| --logs-upload-retry-interval ⊗ | Specify the time to wait between logs upload retries, in minutes. ↪ |
| --lso-url ⊗ | No description ↪ |
| --ltr ⊗ | No description ↪ |
| --main-frame-resizes-are-orientation-changes ⊗ | Resizes of the main frame are caused by changing between landscape and portrait mode (i.e. Android) so the page should be rescaled to fit. ↪ |
| --make-chrome-default[6] ⊗ | Indicates whether Chrome should be set as the default browser during installation. ↪ |
| --make-default-browser ⊗ | Makes Chrome default browser ↪ |
| --managed-user-id ⊗ | Sets the supervised user ID for any loaded or newly created profile to the given value. Pass an empty string to mark the profile as non-supervised. Used for testing. ↪ |
| --mangle-localized-strings ⊗ | Transform localized strings to be longer, with beginning and end markers to make truncation visually apparent. ↪ |
| --manual ⊗ | No description ↪ |
| --market-url-for-testing[7] ⊗ | Sets the market URL for Chrome for use in testing. ↪ |
| --marketing-opt-in-url ⊗ | Determines the URL to be used when calling the backend. ↪ |
| --max-active-webgl-contexts ⊗ | Allows user to override maximum number of active WebGL contexts per renderer process. ↪ |
| --max-decoded-image-size-mb ⊗ | Sets the maximium decoded image size limitation. ↪ |
| --max-file-size ⊗ | Limit the size of files the scanning engine is allowed to open. ↪ |
| --max-gum-fps ⊗ | Override the maximum framerate as can be specified in calls to getUserMedia. This flag expects a value. Example: --max-gum-fps=17.5 ↪ |
| --max-output-volume-dba1m ⊗ | Calibrated max output volume dBa for voice content at 1 meter, if known. ↪ |
| --max-untiled-layer-height ⊗ | Sets the width and height above which a composited layer will get tiled. ↪ |
| --max-untiled-layer-width ⊗ | No description ↪ |
| --mem-pressure-system-reserved-kb ⊗ | Some platforms typically have very little 'free' memory, but plenty is available in buffers+cached. For such platforms, configure this amount as the portion of buffers+cached memory that should be treated as unavailable. If this switch is not used, a simple pressure heuristic based purely on free memory will be used. ↪ |
| --memlog ⊗ | No description ↪ |
| --memlog-sampling-rate ⊗ | No description ↪ |
| --memlog-stack-mode ⊗ | No description ↪ |
| --memory-pressure-off ⊗ | No description ↪ |
| --message-loop-type-ui ⊗ | Indicates the utility process should run with a message loop type of UI. ↪ |
| --metrics-client-id[6] ⊗ | This is how the metrics client ID is passed from the browser process to its children. With Crashpad, the metrics client ID is distinct from the crash client ID. ↪ |
| --metrics-recording-only ⊗ | Enables the recording of metrics reports but disables reporting. In contrast to kForceEnableMetricsReporting, this executes all the code that a normal client would use for reporting, except the report is dropped rather than sent to the server. This is useful for finding issues in the metrics code during UI and performance tests. ↪ |
| --metrics-upload-interval ⊗ | Override the standard time interval between each metrics report upload for UMA and UKM. It is useful to set to a short interval for debugging. Unit in seconds. (The default is 1800 seconds on desktop). ↪ |
| --min-height-for-gpu-raster-tile ⊗ | Sets the min tile height for GPU raster. ↪ |
| --minimal ⊗ | No description ↪ |
| --mixed ⊗ | No description ↪ |
| --mixer-enable-dynamic-channel-count ⊗ | Enable dynamically changing the channel count in the mixer depending on the input streams. ↪ |
| --mixer-service-endpoint ⊗ | Endpoint that the mixer service listens on. This is a path for a UNIX domain socket (default is /tmp/mixer-service). ↪ |
| --mixer-service-port ⊗ | TCP port that the mixer service listens on on non-Linux platforms. (default 12854). ↪ |
| --mixer-source-audio-ready-threshold-ms ⊗ | Specify the start threshold frames for audio output when using our mixer. This is mostly used to override the default value to a larger value, for platforms that can't handle the default start threshold without running into audio underruns. ↪ |
| --mixer-source-input-queue-ms ⊗ | Specify the buffer size for audio output when using our mixer. This is mostly used to override the default value to a larger value, for platforms that can't handle an audio buffer so small without running into audio underruns. ↪ |
| --mock ⊗ | No description ↪ |
| --mock-cert-verifier-default-result-for-testing ⊗ | Set the default result for MockCertVerifier. This only works in test code. ↪ |
| --mojo-core-library-path ⊗ | Initializes Mojo Core from a shared library at the specified path, rather than using the version of Mojo Core embedded within the Content executable. ↪ |
| --mojo-local-storage ⊗ | Use a Mojo-based LocalStorage implementation. ↪ |
| --mojo-pipe-token ⊗ | No description ↪ |
| --monitoring-destination-id ⊗ | Allows setting a different destination ID for connection-monitoring GCM messages. Useful when running against a non-prod management server. ↪ |
| --mse-audio-buffer-size-limit-mb ⊗ | Allows explicitly specifying MSE audio/video buffer sizes as megabytes. Default values are 150M for video and 12M for audio. ↪ |
| --mse-video-buffer-size-limit-mb ⊗ | No description ↪ |
| --mute-audio ⊗ | Mutes audio sent to the audio device so it is not audible during automated testing. ↪ |
| --nacl-broker ⊗ | No description ↪ |
| --nacl-dangerous-no-sandbox-nonsfi ⊗ | Disable sandbox even for non SFI mode. This is particularly unsafe as non SFI NaCl heavily relies on the seccomp sandbox. ↪ |
| --nacl-debug-mask ⊗ | Uses NaCl manifest URL to choose whether NaCl program will be debugged by debug stub. Switch value format: [!]pattern1,pattern2,...,patternN. Each pattern uses the same syntax as patterns in Chrome extension manifest. The only difference is that * scheme matches all schemes instead of matching only http and https. If the value doesn't start with !, a program will be debugged if manifest URL matches any pattern. If the value starts with !, a program will be debugged if manifest URL does not match any pattern. ↪ |
| --nacl-gdb ⊗ | Native Client GDB debugger that will be launched automatically when needed. ↪ |
| --nacl-gdb-script ⊗ | GDB script to pass to the nacl-gdb debugger at startup. ↪ |
| --nacl-loader ⊗ | No description ↪ |
| --nacl-loader-nonsfi ⊗ | Value for --type that causes the process to run as a NativeClient loader for non SFI mode. ↪ |
| --native ⊗ | No description ↪ |
| --native-messaging-connect-extension ⊗ | Requests a native messaging connection be established between the extension with ID specified by this switch and the native messaging host named by the kNativeMessagingConnectHost switch. ↪ |
| --native-messaging-connect-host ⊗ | Requests a native messaging connection be established between the native messaging host named by this switch and the extension with ID specified by kNativeMessagingConnectExtension. ↪ |
| --native-messaging-connect-id ⊗ | If set when kNativeMessagingConnectHost and kNativeMessagingConnectExtension are specified, is reflected to the native messaging host as a command line parameter. ↪ |
| --native-with-thread-names ⊗ | No description ↪ |
| --nearbysharing-http-host ⊗ | Overrides the default URL for Google APIs (https://www.googleapis.com) used by Nearby Share ↪ |
| --need-arc-migration-policy-check ⊗ | If present, the device needs to check the policy to see if the migration to ext4 for ARC is allowed. It should be present only on devices that have been initially issued with ecrypfs encryption and have ARC (N+) available. For the devices in other categories this flag must be missing. ↪ |
| --net-log-capture-mode ⊗ | Sets the granularity of events to capture in the network log. The mode can be set to one of the following values: "Default" "IncludeSensitive" "Everything" See the enums of the corresponding name in net_log_capture_mode.h for a description of their meanings. ↪ |
| --netifs-to-ignore ⊗ | List of network interfaces to ignore. Ignored interfaces will not be used for network connectivity. ↪ |
| --network ⊗ | No description ↪ |
| --network-country-iso[7] ⊗ | The telephony region (ISO country code) to use in phone number detection. ↪ |
| --network-quiet-timeout ⊗ | Sets the timeout seconds of the network-quiet timers in IdlenessDetector. Used by embedders who want to change the timeout time in order to run web contents on various embedded devices and changeable network bandwidths in different regions. For example, it's useful when using FirstMeaningfulPaint signal to dismiss a splash screen. ↪ |
| --new-canvas-2d-api ⊗ | Enable in-progress canvas 2d API features. ↪ |
| --new-window ⊗ | Launches URL in new browser window. ↪ |
| --no-crash-upload ⊗ | Prevent the crash client from uploading crash reports. ↪ |
| --no-default-browser-check ⊗ | Disables the default browser check. Useful for UI/browser tests where we want to avoid having the default browser info-bar displayed. ↪ |
| --no-delay-for-dx12-vulkan-info-collection ⊗ | Start the non-sandboxed GPU process for DX12 and Vulkan info collection immediately after the browser starts. The default is to delay for 120 seconds. ↪ |
| --no-experiments ⊗ | Disables all experiments set on about:flags. Does not disable about:flags itself. Useful if an experiment makes chrome crash at startup: One can start chrome with --no-experiments, disable the problematic lab at about:flags and then restart chrome without this switch again. ↪ |
| --no-first-run ⊗ | Skip First Run tasks, whether or not it's actually the First Run. Overridden by kForceFirstRun. This does not drop the First Run sentinel and thus doesn't prevent first run from occuring the next time chrome is launched without this flag. ↪ |
| --no-initial-navigation ⊗ | Stops new Shell objects from navigating to a default url. ↪ |
| --no-managed-user-acknowledgment-check ⊗ | Disables checking whether we received an acknowledgment when registering a supervised user. Also disables the timeout during registration that waits for the ack. Useful when debugging against a server that does not support notifications. ↪ |
| --no-network-profile-warning[1] ⊗ | Whether or not the browser should warn if the profile is on a network share. This flag is only relevant for Windows currently. ↪ |
| --no-pings ⊗ | Don't send hyperlink auditing pings ↪ |
| --no-proxy-server ⊗ | Don't use a proxy server, always make direct connections. Overrides any other proxy server flags that are passed. ↪ |
| --no-recovery-component ⊗ | Prevent downloading and running the recovery component. ↪ |
| --no-report-upload ⊗ | Prevent the logging service from uploading logs and reports. WARNING: this switch is used by internal test systems. Be careful when making changes. ↪ |
| --no-sandbox ⊗ | Disables the sandbox for all process types that are normally sandboxed. Meant to be used as a browser-level switch for testing purposes only. ↪ |
| --no-sandbox-and-elevated[1] ⊗ | Disables the sandbox and gives the process elevated privileges. ↪ |
| --no-self-delete ⊗ | Prevent the executable from deleting itself after running. ↪ |
| --no-service-autorun ⊗ | Disables the service process from adding itself as an autorun process. This does not delete existing autorun registrations, it just prevents the service from registering a new one. ↪ |
| --no-startup-window ⊗ | Does not automatically open a browser window on startup (used when launching Chrome for the purpose of hosting background apps). ↪ |
| --no-user-gesture-required ⊗ | Autoplay policy that does not require any user gesture. ↪ |
| --no-v8-untrusted-code-mitigations ⊗ | Disables V8 mitigations for executing untrusted code. ↪ |
| --no-vr-runtime ⊗ | Tell WebXr to assume that it does not support any runtimes. ↪ |
| --no-wifi ⊗ | Disable features that require WiFi management. ↪ |
| --no-xshm ⊗ | Disables MIT-SHM extension. ↪ |
| --no-zygote ⊗ | Disables the use of a zygote process for forking child processes. Instead, child processes will be forked and exec'd directly. Note that --no-sandbox should also be used together with this flag because the sandbox needs the zygote to work. ↪ |
| --no-zygote-sandbox[10] ⊗ | Instructs the zygote to launch without a sandbox. Processes forked from this type of zygote will apply their own custom sandboxes later. ↪ |
| --noerrdialogs ⊗ | Suppresses all error dialogs when present. ↪ |
| --none ⊗ | Must be in sync with "sandbox_type" values as used in service manager's manifest.json catalog files. ↪ |
| --none_and_elevated ⊗ | No description ↪ |
| --note-taking-app-ids ⊗ | An optional comma-separated list of IDs of apps that can be used to take notes. If unset, a hardcoded list is used instead. ↪ |
| --notification-inline-reply[1] ⊗ | Used in combination with kNotificationLaunchId to specify the inline reply entered in the toast in the Windows Action Center. ↪ |
| --notification-launch-id[1] ⊗ | Used for launching Chrome when a toast displayed in the Windows Action Center has been activated. Should contain the launch ID encoded by Chrome. ↪ |
| --ntp-snippets-add-incomplete ⊗ | If this flag is set, we will add downloaded snippets that are missing some critical data to the list. ↪ |
| --null ⊗ | No description ↪ |
| --num-raster-threads ⊗ | Number of worker threads used to rasterize content. ↪ |
| --oauth-account-manager-url ⊗ | No description ↪ |
| --oauth2-client-id ⊗ | No description ↪ |
| --oauth2-client-secret ⊗ | No description ↪ |
| --oculus ⊗ | The following are the runtimes that WebXr supports. ↪ |
| --offer-in-settings ⊗ | No description ↪ |
| --on-the-fly-mhtml-hash-computation ⊗ | Calculate the hash of an MHTML file as it is being saved. The browser process will write the serialized MHTML contents to a file and calculate its hash as it is streamed back from the renderer via a Mojo data pipe. ↪ |
| --oobe-eula-url-for-tests ⊗ | Allows the eula url to be overridden for tests. ↪ |
| --oobe-force-show-screen ⊗ | Forces OOBE/login to force show a comma-separated list of screens from chromeos::kScreenNames in oobe_screen.cc. Supported screens are: user-image ↪ |
| --oobe-force-tablet-first-run ⊗ | Indicates that the first user run flow (sequence of OOBE screens after the first user login) should show tablet mode centric screens, even if the device is not in tablet mode. ↪ |
| --oobe-guest-session ⊗ | Indicates that a guest session has been started before OOBE completion. ↪ |
| --oobe-screenshot-dir ⊗ | Specifies directory for screenshots taken with OOBE UI Debugger. ↪ |
| --oobe-skip-postlogin ⊗ | Skips all other OOBE pages after user login. ↪ |
| --oobe-skip-to-login ⊗ | Skip to login screen. ↪ |
| --oobe-timer-interval ⊗ | Interval at which we check for total time on OOBE. ↪ |
| --oobe-timezone-override-for-tests ⊗ | Allows the timezone to be overridden on the marketing opt-in screen. ↪ |
| --opengraph ⊗ | No description ↪ |
| --openvr ⊗ | No description ↪ |
| --openxr ⊗ | No description ↪ |
| --optimization-guide-fetch-hints-override ⊗ | Overrides scheduling and time delays for fetching hints and causes a hints fetch immediately on start up using the provided comma separate lists of hosts. ↪ |
| --optimization-guide-fetch-hints-override-timer ⊗ | Overrides the hints fetch scheduling and delay, causing a hints fetch immediately on start up using the TopHostProvider. This is meant for testing. ↪ |
| --optimization-guide-fetch-models-and-features-override ⊗ | Overrides scheduling and time delays for fetching prediction models and host model features. This causes a prediction model and host model features fetch immediately on start up. ↪ |
| --optimization-guide-service-api-key ⊗ | Overrides the Optimization Guide Service API Key for remote requests to be made. ↪ |
| --optimization-guide-service-get-hints-url ⊗ | Overrides the Optimization Guide Service URL that the HintsFetcher will request remote hints from. ↪ |
| --optimization-guide-service-get-models-url ⊗ | Overrides the Optimization Guide Service URL that the PredictionModelFetcher will request remote models and host features from. ↪ |
| --optimization_guide_hints_override ⊗ | Overrides the Hints Protobuf that would come from the component updater. If the value of this switch is invalid, regular hint processing is used. The value of this switch should be a base64 encoding of a binary Configuration message, found in optimization_guide's hints.proto. Providing a valid value to this switch causes Chrome startup to block on hints parsing. ↪ |
| --orientation-sensors ⊗ | No description ↪ |
| --origin-trial-disabled-features ⊗ | Contains a list of feature names for which origin trial experiments should be disabled. Names should be separated by "|" characters. ↪ |
| --origin-trial-disabled-tokens ⊗ | Contains a list of token signatures for which origin trial experiments should be disabled. Tokens should be separated by "|" characters. ↪ |
| --origin-trial-public-key ⊗ | Comma-separated list of keys which will override the default public keys for checking origin trial tokens. ↪ |
| --output ⊗ | No description ↪ |
| --override ⊗ | "Override" value for kCrosRegionsMode (region's data is read first). ↪ |
| --override-enabled-cdm-interface-version ⊗ | Overrides the default enabled library CDM interface version(s) with the one specified with this switch, which will be the only version enabled. For example, on a build where CDM 8, CDM 9 and CDM 10 are all supported (implemented), but only CDM 8 and CDM 9 are enabled by default: --override-enabled-cdm-interface-version=8 : Only CDM 8 is enabled --override-enabled-cdm-interface-version=9 : Only CDM 9 is enabled --override-enabled-cdm-interface-version=10 : Only CDM 10 is enabled --override-enabled-cdm-interface-version=11 : No CDM interface is enabled This can be used for local testing and debugging. It can also be used to enable an experimental CDM interface (which is always disabled by default) for testing while it's still in development. ↪ |
| --override-hardware-secure-codecs-for-testing ⊗ | Overrides hardware secure codecs support for testing. If specified, real platform hardware secure codecs check will be skipped. Codecs are separated by comma. Valid codecs are "vp8", "vp9" and "avc1". For example: --override-hardware-secure-codecs-for-testing=vp8,vp9 --override-hardware-secure-codecs-for-testing=avc1 CENC encryption scheme is assumed to be supported for the specified codecs. If no valid codecs specified, no hardware secure codecs are supported. This can be used to disable hardware secure codecs support: --override-hardware-secure-codecs-for-testing ↪ |
| --override-https-image-compression-infobar ⊗ | Override the one-time InfoBar to not needed to be shown before triggering https image compression for the page load. ↪ |
| --override-metrics-upload-url ⊗ | Override the URL to which metrics logs are sent for debugging. ↪ |
| --override-plugin-power-saver-for-testing ⊗ | Override the behavior of plugin throttling for testing. By default the throttler is only enabled for a hard-coded list of plugins. Set the value to 'always' to always throttle every plugin instance. Set the value to 'never' to disable throttling. ↪ |
| --override-use-software-gl-for-tests ⊗ | Forces the use of software GL instead of hardware gpu. ↪ |
| --ozone-dump-file ⊗ | Specify location for image dumps. ↪ |
| --ozone-platform ⊗ | Specify ozone platform implementation to use. ↪ |
| --pack-extension ⊗ | Packages an extension to a .crx installable file from a given directory. ↪ |
| --pack-extension-key ⊗ | Optional PEM private key to use in signing packaged .crx. ↪ |
| --parent-window ⊗ | No description ↪ |
| --passive-listeners-default ⊗ | Override the default value for the 'passive' field in javascript addEventListener calls. Values are defined as: 'documentonlytrue' to set the default be true only for document level nodes. 'true' to set the default to be true on all nodes (when not specified). 'forcealltrue' to force the value on all nodes. ↪ |
| --passthrough ⊗ | No description ↪ |
| --password-store ⊗ | Specifies which encryption storage backend to use. Possible values are kwallet, kwallet5, gnome, gnome-keyring, gnome-libsecret, basic. Any other value will lead to Chrome detecting the best backend automatically. TODO(crbug.com/571003): Once PasswordStore no longer uses the Keyring or KWallet for storing passwords, rename this flag to stop referencing passwords. Do not rename it sooner, though; developers and testers might rely on it keeping large amounts of testing passwords out of their Keyrings or KWallets. ↪ |
| --pdf_conversion[1] ⊗ | No description ↪ |
| --pen-devices[10] ⊗ | Tells chrome to interpret events from these devices as pen events. Only available with XInput 2 (i.e. X server 1.8 or above). The id's of the devices can be retrieved from 'xinput list'. ↪ |
| --perf-test-print-uma-means ⊗ | Show the mean value of histograms that native performance tests are monitoring. Note that this is only applicable for PerformanceTest subclasses. ↪ |
| --perfetto-disable-interning ⊗ | Repeat internable data for each TraceEvent in the perfetto proto format. ↪ |
| --perfetto-output-file ⊗ | If supplied, will enable Perfetto startup tracing and stream the output to the given file. On Android, if no file is provided, automatically generate a file to write the output to. TODO(oysteine): Remove once Perfetto starts early enough after process startup to be able to replace the legacy startup tracing. ↪ |
| --performance[5] ⊗ | No description ↪ |
| --permission-request-api-scope ⊗ | Development flag for permission request API. This flag is needed until the API is finalized. TODO(bauerb): Remove when this flag is not needed anymore. ↪ |
| --permission-request-api-url ⊗ | Development flag for permission request API. This flag is needed until the API is finalized. TODO(bauerb): Remove when this flag is not needed anymore. ↪ |
| --playready-key-system ⊗ | No description ↪ |
| --post-reboot ⊗ | Indicates this run is post-reboot. ↪ |
| --post-reboot-override-cmd ⊗ | Indicates that this is a post-reboot run that should fetch its switches from an external registry key. Important note: When this switch is present in the command line, all other switches are ignored except for kCleanupIdSwitch, which is used to read post-reboot switches from the correct registry location. ↪ |
| --post-reboot-trigger ⊗ | A freeform text string that records what triggered a post-reboot run. ↪ |
| --ppapi ⊗ | No description ↪ |
| --ppapi-antialiased-text-enabled[1] ⊗ | The boolean value (0/1) of FontRenderParams::antialiasing to be passed to Ppapi processes. ↪ |
| --ppapi-broker ⊗ | No description ↪ |
| --ppapi-flash-args ⊗ | "Command-line" arguments for the PPAPI Flash; used for debugging options. ↪ |
| --ppapi-flash-path ⊗ | Use the PPAPI (Pepper) Flash found at the given path. ↪ |
| --ppapi-flash-version ⊗ | Report the given version for the PPAPI (Pepper) Flash. The version should be numbers separated by '.'s (e.g., "12.3.456.78"). If not specified, it defaults to "10.2.999.999". ↪ |
| --ppapi-in-process ⊗ | Runs PPAPI (Pepper) plugins in-process. ↪ |
| --ppapi-plugin-launcher ⊗ | Specifies a command that should be used to launch the ppapi plugin process. Useful for running the plugin process through purify or quantify. Ex: --ppapi-plugin-launcher="path\to\purify /Run=yes" ↪ |
| --ppapi-startup-dialog ⊗ | Causes the PPAPI sub process to display a dialog on launch. Be sure to use --no-sandbox as well or the sandbox won't allow the dialog to display. ↪ |
| --ppapi-subpixel-rendering-setting[1] ⊗ | The enum value of FontRenderParams::subpixel_rendering to be passed to Ppapi processes. ↪ |
| --previous-app ⊗ | previous-app should be the app that was running when last-launched-app started. ↪ |
| --print-to-pdf ⊗ | Save a pdf file of the loaded page. ↪ |
| --print-to-pdf-no-header ⊗ | Do not display header and footer in the pdf file. ↪ |
| --print_compositor ⊗ | No description ↪ |
| --privet-ipv6-only ⊗ | Use IPv6 only for privet HTTP. ↪ |
| --process-per-site ⊗ | Enable the "Process Per Site" process model for all domains. This mode consolidates same-site pages so that they share a single process. More details here: - https://www.chromium.org/developers/design-documents/process-models - The class comment in site_instance.h, listing the supported process models. IMPORTANT: This isn't to be confused with --site-per-process (which is about isolation, not consolidation). You probably want the other one. ↪ |
| --process-per-tab ⊗ | Runs each set of script-connected tabs (i.e., a BrowsingInstance) in its own renderer process. We default to using a renderer process for each site instance (i.e., group of pages from the same registered domain with script connections to each other). TODO(creis): This flag is currently a no-op. We should refactor it to avoid "unnecessary" process swaps for cross-site navigations but still swap when needed for security (e.g., isolated origins). ↪ |
| --prod ⊗ | The command line alias and URL for the "prod" environment. ↪ |
| --product-version ⊗ | Outputs the product version information and quit. Used as an internal api to detect the installed version of Chrome on Linux. ↪ |
| --profile-directory ⊗ | Selects directory of profile to associate with the first browser launched. ↪ |
| --profile-requires-policy ⊗ | If set to "true", the profile requires policy during restart (policy load must succeed, otherwise session restart should fail). ↪ |
| --profiling-at-start ⊗ | Starts the sampling based profiler for the browser process at startup. This will only work if chrome has been built with the gn arg enable_profiling = true. The output will go to the value of kProfilingFile. ↪ |
| --profiling-file ⊗ | Specifies a location for profiling output. This will only work if chrome has been built with the gyp variable profiling=1 or gn arg enable_profiling=true. {pid} if present will be replaced by the pid of the process. {count} if present will be incremented each time a profile is generated for this process. The default is chrome-profile-{pid} for the browser and test-profile-{pid} for tests. ↪ |
| --profiling-flush ⊗ | Controls whether profile data is periodically flushed to a file. Normally the data gets written on exit but cases exist where chromium doesn't exit cleanly (especially when using single-process). A time in seconds can be specified. ↪ |
| --progress-bar-animation[7] ⊗ | Specifies Android phone page loading progress bar animation. ↪ |
| --proxy-auto-detect ⊗ | Forces proxy auto-detection. ↪ |
| --proxy-bypass-list ⊗ | Specifies a list of hosts for whom we bypass proxy settings and use direct connections. Ignored unless --proxy-server is also specified. This is a comma-separated list of bypass rules. See: "net/proxy_resolution/proxy_bypass_rules.h" for the format of these rules. ↪ |
| --proxy-pac-url ⊗ | Uses the pac script at the given URL ↪ |
| --proxy-server ⊗ | Uses a specified proxy server, overrides system settings. This switch only affects HTTP and HTTPS requests. ↪ |
| --proxy_resolver[1] ⊗ | No description ↪ |
| --pseudo ⊗ | No description ↪ |
| --public-accounts-saml-acl-url ⊗ | SAML assertion consumer URL, used to detect when Gaia-less SAML flows end (e.g. for SAML managed guest sessions) TODO(984021): Remove when URL is sent by DMServer. ↪ |
| --pull-to-refresh ⊗ | Enables or disables pull-to-refresh gesture in response to vertical overscroll. Set the value to '0' to disable the feature, set to '1' to enable it for both touchpad and touchscreen, and set to '2' to enable it only for touchscreen. Defaults to disabled. ↪ |
| --purge-model-and-features-store ⊗ | Purges the store containing prediction medels and host model features on startup, so that it's guaranteed to be using fresh data. ↪ |
| --purge-optimization-guide-store ⊗ | Purges the store containing fetched and component hints on startup, so that it's guaranteed to be using fresh data. ↪ |
| --pwa-launcher-version[1] ⊗ | Specifies the version of the Progressive-Web-App launcher that launched Chrome, used to determine whether to update all launchers. NOTE: changing this switch requires adding legacy handling for the previous method, as older PWA launchers still using this switch will rely on Chrome to update them to use the new method. ↪ |
| --quarantine-dir ⊗ | Specifies the quarantine folder instead of the default one. ↪ |
| --query-tiles-country-code ⊗ | No description ↪ |
| --query-tiles-instant-background-task ⊗ | No description ↪ |
| --query-tiles-single-tier ⊗ | No description ↪ |
| --rdp_desktop_session ⊗ | No description ↪ |
| --reached-code-sampling-interval-us[7] ⊗ | Specifies the profiling interval in microseconds for reached code profiler. ↪ |
| --reader-mode-feedback ⊗ | No description ↪ |
| --reader-mode-heuristics ⊗ | No description ↪ |
| --realtime-reporting-url ⊗ | Specifies the URL at which to upload real-time reports. ↪ |
| --redirect-libassistant-logging ⊗ | Redirects libassistant logging to /var/log/chrome/. ↪ |
| --register-font-files[1] ⊗ | Registers additional font files on Windows (for fonts outside the usual %WINDIR%\Fonts location). Multiple files can be used by separating them with a semicolon (;). ↪ |
| --register-max-dark-suspend-delay ⊗ | Makes Chrome register the maximum dark suspend delay possible on Chrome OS i.e. give the device the maximum amount of time to do its work in dark resume as is allowed by the power manager. ↪ |
| --register-pepper-plugins ⊗ | Register Pepper plugins (see pepper_plugin_list.cc for its format). ↪ |
| --regulatory-label-dir ⊗ | The name of the per-model directory which contains per-region subdirectories with regulatory label files for this model. The per-model directories (if there are any) are located under "/usr/share/chromeos-assets/regulatory_labels/". ↪ |
| --relauncher[6] ⊗ | A process type (switches::kProcessType) that relaunches the browser. See chrome/browser/mac/relauncher.h. ↪ |
| --remote-debugger-handles ⊗ | No description ↪ |
| --remote-debugging-address ⊗ | Use the given address instead of the default loopback for accepting remote debugging connections. Should be used together with --remote-debugging-port. Note that the remote debugging protocol does not perform any authentication, so exposing it too widely can be a security risk. ↪ |
| --remote-debugging-pipe ⊗ | Enables remote debug over stdio pipes [in=3, out=4]. Optionally, specifies the format for the protocol messages, can be either "JSON" (the default) or "CBOR". ↪ |
| --remote-debugging-port ⊗ | Enables remote debug over HTTP on the specified port. ↪ |
| --remote-debugging-socket-name[7] ⊗ | Enables remote debug over HTTP on the specified socket name. ↪ |
| --remote-debugging-targets ⊗ | Porvides a list of addresses to discover DevTools remote debugging targets. The format is <host>:<port>,...,<host>:port. ↪ |
| --remove-scan-only-uws ⊗ | Allow the engine to remove UwS that isn't marked cleanable. For testing only. ↪ |
| --renderer ⊗ | No description ↪ |
| --renderer-client-id ⊗ | No description ↪ |
| --renderer-cmd-prefix ⊗ | The contents of this flag are prepended to the renderer command line. Useful values might be "valgrind" or "xterm -e gdb --args". ↪ |
| --renderer-process-limit ⊗ | Overrides the default/calculated limit to the number of renderer processes. Very high values for this setting can lead to high memory/resource usage or instability. ↪ |
| --renderer-sampling ⊗ | No description ↪ |
| --renderer-startup-dialog ⊗ | Causes the renderer process to display a dialog on launch. Passing this flag also adds sandbox::policy::kNoSandbox on Windows non-official builds, since that's needed to show a dialog. ↪ |
| --renderer-wait-for-java-debugger[7] ⊗ | Block ChildProcessMain thread of the renderer's ChildProcessService until a Java debugger is attached. ↪ |
| --renderpass ⊗ | Parameters for kUIShowCompositedLayerBorders. ↪ |
| --repl ⊗ | Runs a read-eval-print loop that allows the user to evaluate Javascript expressions. ↪ |
| --report-vp9-as-an-unsupported-mime-type ⊗ | Force to report VP9 as an unsupported MIME type. ↪ |
| --require-audio-hardware-for-testing ⊗ | When running tests on a system without the required hardware or libraries, this flag will cause the tests to fail. Otherwise, they silently succeed. ↪ |
| --require-wlan ⊗ | Only connect to WLAN interfaces. ↪ |
| --reset-variation-state ⊗ | Forces a reset of the one-time-randomized FieldTrials on this client, also known as the Chrome Variations state. ↪ |
| --restore-last-session ⊗ | Indicates the last session should be restored on startup. This overrides the preferences value. Note that this does not force automatic session restore following a crash, so as to prevent a crash loop. This switch is used to implement support for OS-specific "continue where you left off" functionality on OS X and Windows. ↪ |
| --restrict-gamepad-access ⊗ | Enables Feature Policy and Secure Context requirements on getGamepads. ↪ |
| --rlz-ping-delay ⊗ | The rlz ping delay (in seconds) that overwrites the default value. ↪ |
| --rtl ⊗ | No description ↪ |
| --run-all-compositor-stages-before-draw ⊗ | Effectively disables pipelining of compositor frame production stages by waiting for each stage to finish before completing a frame. ↪ |
| --run-manual ⊗ | Manual tests only run when --run-manual is specified. This allows writing tests that don't run automatically but are still in the same test binary. This is useful so that a team that wants to run a few tests doesn't have to add a new binary that must be compiled on all builds. ↪ |
| --run-web-tests ⊗ | Runs Content Shell in web test mode, injecting test-only behaviour for blink web tests. ↪ |
| --run-without-sandbox-for-testing[3] ⊗ | Load the engine outside the sandbox. This is only to be used for manual testing. ↪ |
| --safe-mode ⊗ | The switch added by session_manager daemon when chrome crashes 3 times or more within the first 60 seconds on start. See BrowserJob::ExportArgv in platform2/login_manager/browser_job.cc. ↪ |
| --safebrowsing-enable-enhanced-protection ⊗ | Enable Safe Browsing Enhanced Protection. ↪ |
| --safebrowsing-manual-download-blacklist ⊗ | List of comma-separated sha256 hashes of executable files which the download-protection service should treat as "dangerous." For a file to show a warning, it also must be considered a dangerous filetype and not be whitelisted otherwise (by signature or URL) and must be on a supported OS. Hashes are in hex. This is used for manual testing when looking for ways to by-pass download protection. ↪ |
| --SafeSites ⊗ | No description ↪ |
| --saml-password-change-url ⊗ | Password change url for SAML users. TODO(941489): Remove when the bug is fixed. ↪ |
| --sandbox-ipc ⊗ | Causes the process to run as a sandbox IPC subprocess. ↪ |
| --sandbox-mojo-pipe-token ⊗ | Mojo pipe token generated in the broker process and passed to the sandbox process to bind with the EngineCommands IPC interface. ↪ |
| --sandboxed-process-id ⊗ | Used to identify the id of the sandbox process that is intended to be spawned. ↪ |
| --save-page-as-mhtml ⊗ | Disable saving pages as HTML-only, disable saving pages as HTML Complete (with a directory of sub-resources). Enable only saving pages as MHTML. See http://crbug.com/120416 for how to remove this switch. ↪ |
| --scan-locations ⊗ | Used to limit trace locations that will be scanned. Trace locations should be specified as integers, separated by commas. For example: --scan-locations=1,2,3,5 ↪ |
| --scanning-timeout ⊗ | Set the timeout for the scanning phase, in minutes. 0 disables the timeout entirely. WARNING: this switch is used by internal test systems. Be careful when making changes. ↪ |
| --scheduler-configuration[5] ⊗ | Selects the scheduler configuration specified in the parameter. ↪ |
| --scheduler-configuration-default[5] ⊗ | Specifies what the default scheduler configuration value is if the user does not set one. ↪ |
| --screen-config ⊗ | Specifies the initial screen configuration, or state of all displays, for FakeDisplayDelegate, see class for format details. ↪ |
| --screenshot ⊗ | Save a screenshot of the loaded page. ↪ |
| --search-provider-logo-url ⊗ | Use a static URL for the logo of the default search engine. Example: https://www.google.com/branding/logo.png ↪ |
| --secondary-display-layout ⊗ | Specifies the layout mode and offsets for the secondary display for testing. The format is "<t|r|b|l>,<offset>" where t=TOP, r=RIGHT, b=BOTTOM and L=LEFT. For example, 'r,-100' means the secondary display is positioned on the right with -100 offset. (above than primary) ↪ |
| --service ⊗ | No description ↪ |
| --service-manager ⊗ | The value of the |kProcessType| switch which tells the executable to assume the role of a standalone Service Manager instance. ↪ |
| --service-name ⊗ | Indicates the name of the service to run. Useful for debugging, or if a service executable is built to support being run as a number of potential different services. ↪ |
| --service-request-attachment-name ⊗ | The name of the |mojo::PendingReceiver<service_manager::mojom::Service>| message pipe handle that is attached to the incoming Mojo invitation received by the service. ↪ |
| --service-request-channel-token ⊗ | The token to use to construct the message pipe for a service in a child process. ↪ |
| --service-runner ⊗ | The value of the |kProcessType| switch which tells the executable to assume the role of a service instance. ↪ |
| --service-sandbox-type ⊗ | Type of sandbox to apply to the process running the service, one of the values in the next block. ↪ |
| --set-extension-throttle-test-params ⊗ | Set the parameters for ExtensionURLLoaderThrottleBrowserTest. ↪ |
| --shader-disk-cache-size-kb ⊗ | Allows explicitly specifying the shader disk cache size for embedded devices. Default value is 6MB. On Android, 2MB is default and 128KB for low-end devices. ↪ |
| --shared-files ⊗ | Describes the file descriptors passed to a child process in the following list format: <file_id>:<descriptor_id>,<file_id>:<descriptor_id>,... where <file_id> is an ID string from the manifest of the service being launched and <descriptor_id> is the numeric identifier of the descriptor for the child process can use to retrieve the file descriptor from the global descriptor table. ↪ |
| --sharing_service ⊗ | No description ↪ |
| --shelf-hotseat ⊗ | New modular design for the shelf with apps separated into a hotseat UI and smaller shelf in clamshell mode. ↪ |
| --shelf-hover-previews ⊗ | App window previews when hovering over the shelf. ↪ |
| --shill-stub ⊗ | Overrides Shill stub behavior. By default, ethernet, wifi and vpn are enabled, and transitions occur instantaneously. Multiple options can be comma separated (no spaces). Note: all options are in the format 'foo=x'. Values are case sensitive and based on Shill names in service_constants.h. See FakeShillManagerClient::SetInitialNetworkState for implementation. Examples: 'clear=1' - Clears all default configurations 'wifi=on' - A wifi network is initially connected ('1' also works) 'wifi=off' - Wifi networks are all initially disconnected ('0' also works) 'wifi=disabled' - Wifi is initially disabled 'wifi=none' - Wifi is unavailable 'wifi=portal' - Wifi connection will be in Portal state 'cellular=1' - Cellular is initially connected 'cellular=LTE' - Cellular is initially connected, technology is LTE 'interactive=3' - Interactive mode, connect/scan/etc requests take 3 secs ↪ |
| --short-merge-session-timeout-for-test[5] ⊗ | Use a short (1 second) timeout for merge session loader throttle testing. ↪ |
| --short-reporting-delay ⊗ | Sets the Reporting API delay to under a second to allow much quicker reports. ↪ |
| --show-aggregated-damage ⊗ | Adds a DebugBorderDrawQuad to the top of the root RenderPass showing the damage rect after surface aggregation. Note that when enabled this feature sets the entire output rect as damaged after adding the quad to highlight the real damage rect, which could hide damage rect problems. ↪ |
| --show-android-files-in-files-app ⊗ | If true, files in Android internal storage will be shown in Files app. ↪ |
| --show-auth-dialog-dev-overlay ⊗ | If true, the debug view overlay will be shown for the in-session authentication dialog. This enables development of the dialog. TODO(yichenli): Remove this after the feature is released. ↪ |
| --show-autofill-signatures ⊗ | Annotates forms and fields with Autofill signatures. ↪ |
| --show-autofill-type-predictions ⊗ | Annotates forms with Autofill field type predictions. ↪ |
| --show-component-extension-options ⊗ | Makes component extensions appear in chrome://settings/extensions. ↪ |
| --show-composited-layer-borders ⊗ | Renders a border around compositor layers to help debug and study layer compositing. ↪ |
| --show-dc-layer-debug-borders ⊗ | Show debug borders for DC layers - red for overlays and blue for underlays. The debug borders are offset from the layer rect by a few pixels for clarity. ↪ |
| --show-fps-counter ⊗ | Draws a heads-up-display showing Frames Per Second as well as GPU memory usage. If you also use --enable-logging=stderr --vmodule="head*=1" then FPS will also be output to the console log. ↪ |
| --show-icons[1] ⊗ | See kHideIcons. ↪ |
| --show-layer-animation-bounds ⊗ | Renders a border that represents the bounding box for the layer's animation. ↪ |
| --show-layout-shift-regions ⊗ | Visibly render a border around layout shift rects in the web page to help debug and study layout shifts. ↪ |
| --show-login-dev-overlay ⊗ | If true, the developer tool overlay will be shown for the login/lock screen. This makes it easier to test layout logic. ↪ |
| --show-mac-overlay-borders[6] ⊗ | Show borders around CALayers corresponding to overlays and partial damage. ↪ |
| --show-oobe-dev-overlay ⊗ | Enables OOBE UI Debugger for ease of navigation between screens during manual testing. Limited to ChromeOS-on-linux and test images only. ↪ |
| --show-overdraw-feedback ⊗ | Visualize overdraw by color-coding elements based on if they have other elements drawn underneath. This is good for showing where the UI might be doing more rendering work than necessary. The colors are hinting at the amount of overdraw on your screen for each pixel, as follows: True color: No overdraw. Blue: Overdrawn once. Green: Overdrawn twice. Pink: Overdrawn three times. Red: Overdrawn four or more times. ↪ |
| --show-paint-rects ⊗ | Visibly render a border around paint rects in the web page to help debug and study painting behavior. ↪ |
| --show-property-changed-rects ⊗ | Show rects in the HUD around layers whose properties have changed. ↪ |
| --show-screenspace-rects ⊗ | Show rects in the HUD around the screen-space transformed bounds of every layer. ↪ |
| --show-surface-damage-rects ⊗ | Show rects in the HUD around damage as it is recorded into each render surface. ↪ |
| --show-taps ⊗ | Draws a circle at each touch point, similar to the Android OS developer option "Show taps". ↪ |
| --silent-debugger-extension-api ⊗ | Does not show an infobar when an extension attaches to a page using chrome.debugger page. Required to attach to extension background pages. ↪ |
| --silent-launch ⊗ | Causes Chrome to launch without opening any windows by default. Useful if one wishes to use Chrome as an ash server. ↪ |
| --simulate-critical-update ⊗ | Simulates a critical update being available. ↪ |
| --simulate-elevated-recovery ⊗ | Simulates that elevation is needed to recover upgrade channel. ↪ |
| --simulate-outdated ⊗ | Simulates that current version is outdated. ↪ |
| --simulate-outdated-no-au ⊗ | Simulates that current version is outdated and auto-update is off. ↪ |
| --simulate-update-error-code ⊗ | Simulates a GoogleUpdateErrorCode error by the update check. Must be supplied with |kSimulateUpdateHresult| switch. ↪ |
| --simulate-update-hresult ⊗ | Simulates a specific HRESULT error code returned by the update check. If the switch value is not specified (as hex) then it defaults to E_FAIL. ↪ |
| --simulate-upgrade ⊗ | Simulates an update being available. ↪ |
| --single-process ⊗ | Runs the renderer and plugins in the same process as the browser ↪ |
| --site-per-process ⊗ | Enforces a one-site-per-process security policy: * Each renderer process, for its whole lifetime, is dedicated to rendering pages for just one site. * Thus, pages from different sites are never in the same process. * A renderer process's access rights are restricted based on its site. * All cross-site navigations force process swaps. * <iframe>s are rendered out-of-process whenever the src= is cross-site. More details here: - https://www.chromium.org/developers/design-documents/site-isolation - https://www.chromium.org/developers/design-documents/process-models - The class comment in site_instance.h, listing the supported process models. IMPORTANT: this isn't to be confused with --process-per-site (which is about process consolidation, not isolation). You probably want this one. ↪ |
| --skia-font-cache-limit-mb ⊗ | Specifies the max number of bytes that should be used by the skia font cache. If the cache needs to allocate more, skia will purge previous entries. ↪ |
| --skia-resource-cache-limit-mb ⊗ | Specifies the max number of bytes that should be used by the skia resource cache. The previous entries are purged from the cache when the memory useage exceeds this limit. ↪ |
| --slow-down-compositing-scale-factor ⊗ | Re-draw everything multiple times to simulate a much slower machine. Give a slow down factor to cause renderer to take that many times longer to complete, such as --slow-down-compositing-scale-factor=2. ↪ |
| --slow-down-raster-scale-factor ⊗ | Re-rasters everything multiple times to simulate a much slower machine. Give a scale factor to cause raster to take that many times longer to complete, such as --slow-down-raster-scale-factor=25. ↪ |
| --sms-test-messages ⊗ | Sends test messages on first call to RequestUpdate (stub only). ↪ |
| --spdy-proxy-auth-fallback ⊗ | The origin of the data reduction proxy fallback. ↪ |
| --spdy-proxy-auth-origin ⊗ | The origin of the data reduction proxy. ↪ |
| --spdy-proxy-auth-value ⊗ | A test key for data reduction proxy authentication. ↪ |
| --speech_recognition ⊗ | No description ↪ |
| --ssl-key-log-file ⊗ | Causes SSL key material to be logged to the specified file for debugging purposes. See https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format for the format. ↪ |
| --ssl-version-max ⊗ | Specifies the maximum SSL/TLS version ("tls1.2" or "tls1.3"). ↪ |
| --ssl-version-min ⊗ | Specifies the minimum SSL/TLS version ("tls1", "tls1.1", "tls1.2", or "tls1.3"). ↪ |
| --stable-release-mode ⊗ | This makes us disable some web-platform runtime features so that we test content_shell as if it was a stable release. It is only followed when kRunWebTest is set. For the features' level, see http://dev.chromium.org/blink/runtime-enabled-features. ↪ |
| --staging ⊗ | The command line alias and URL for the "staging" environment. ↪ |
| --start-fullscreen ⊗ | Specifies if the browser should start in fullscreen mode, like if the user had pressed F11 right after startup. ↪ |
| --start-in-incognito ⊗ | Starts the shell with the profile in incognito mode. ↪ |
| --start-maximized ⊗ | Starts the browser maximized, regardless of any previous settings. ↪ |
| --start-stack-profiler ⊗ | Starts the stack sampling profiler in the child process. ↪ |
| --started ⊗ | Value for kTestCrosGaiaIdMigration indicating that migration is started (i.e. all stored user keys will be converted to GaiaId) ↪ |
| --storage-pressure-notification-interval ⊗ | Interval, in minutes, used for storage pressure notification throttling. Useful for developers testing applications that might use non-trivial amounts of disk space. ↪ |
| --structured-metrics-disabled ⊗ | Disable structured metrics logging of cros actions. ↪ |
| --stub ⊗ | No description ↪ |
| --suppress-message-center-popups ⊗ | Hides all Message Center notification popups (toasts). Used for testing. ↪ |
| --surface ⊗ | No description ↪ |
| --swiftshader ⊗ | No description ↪ |
| --swiftshader-webgl ⊗ | No description ↪ |
| --sync-deferred-startup-timeout-seconds ⊗ | Allows overriding the deferred init fallback timeout. ↪ |
| --sync-disable-deferred-startup ⊗ | Enables deferring sync backend initialization until user initiated changes occur. ↪ |
| --sync-include-specifics ⊗ | Controls whether the initial state of the "Capture Specifics" flag on chrome://sync-internals is enabled. ↪ |
| --sync-short-initial-retry-override ⊗ | This flag causes sync to retry very quickly (see polling_constants.h) the when it encounters an error, as the first step towards exponential backoff. ↪ |
| --sync-short-nudge-delay-for-test ⊗ | This flag significantly shortens the delay between nudge cycles. Its primary purpose is to speed up integration tests. The normal delay allows coalescing and prevention of server overload, so don't use this unless you're really sure that it's what you want. ↪ |
| --sync-url ⊗ | Overrides the default server used for profile sync. ↪ |
| --sys-info-file-path ⊗ | System info file path. Default is an empty string, which means that dummy info will be used. ↪ |
| --system-developer-mode ⊗ | Used by FakeDebugDaemonClient to specify that the system is running in dev mode when running in a Linux environment. The dev mode probing is done by session manager. ↪ |
| --system-gesture-start-height ⊗ | The number of pixels from the very top or bottom of the screen to consider as a valid origin for the top or bottom swipe gesture. Overrides the default value in cast_system_gesture_handler.cc. ↪ |
| --system-gesture-start-width ⊗ | The number of pixels from the very left or right of the screen to consider as a valid origin for the left or right swipe gesture. Overrides the default value in cast_system_gesture_handler.cc. ↪ |
| --system-log-upload-frequency ⊗ | Frequency in Milliseconds for system log uploads. Should only be used for testing purposes. ↪ |
| --telemetry-extension-dir ⊗ | Specifies directory for the Telemetry System Web Extension. ↪ |
| --test-child-process ⊗ | When running certain tests that spawn child processes, this switch indicates to the test framework that the current process is a child process. ↪ |
| --test-cros-gaia-id-migration ⊗ | Controls CrOS GaiaId migration for tests ("" is default). ↪ |
| --test-do-not-initialize-icu ⊗ | When running certain tests that spawn child processes, this switch indicates to the test framework that the current process should not initialize ICU to avoid creating any scoped handles too early in startup. ↪ |
| --test-encryption-migration-ui ⊗ | Enables testing for encryption migration UI. ↪ |
| --test-gl-lib ⊗ | Flag used for Linux tests: for desktop GL bindings, try to load this GL library first, but fall back to regular library if loading fails. ↪ |
| --test-logging-path ⊗ | Set a path to save logs in while testing. ↪ |
| --test-logging-url ⊗ | Set a test logging URL, where logs will be uploaded. ↪ |
| --test-name ⊗ | Passes the name of the current running automated test to Chrome. ↪ |
| --test-type ⊗ | Type of the current test harness ("browser" or "ui"). ↪ |
| --test-wallpaper-server ⊗ | Enables the wallpaper picker to fetch images from the test server. ↪ |
| --testing ⊗ | Flag set during testing and stored as a crash key, to differentiate from crashes received from actual users. WARNING: this switch is used by internal test systems. Be careful when making changes. ↪ |
| --tether-host-scans-ignore-wired-connections ⊗ | Tells the Chromebook to scan for a tethering host even if there is already a wired connection. This allows end-to-end tests to be deployed over ethernet without that connection preventing scans and thereby blocking the testing of cases with no preexisting connection. Should be used only for testing. ↪ |
| --tether-stub ⊗ | Overrides Tether with stub service. Provide integer arguments for the number of fake networks desired, e.g. 'tether-stub=2'. ↪ |
| --third-party-doodle-url ⊗ | Overrides the Doodle URL to use for third-party search engines. Testing? Try: https://www.gstatic.com/chrome/ntp/doodle_test/third_party_simple.json https://www.gstatic.com/chrome/ntp/doodle_test/third_party_animated.json ↪ |
| --timeout ⊗ | Issues a stop after the specified number of milliseconds. This cancels all navigation and causes the DOMContentLoaded event to fire. ↪ |
| --tint-composited-content ⊗ | Tint composited color. ↪ |
| --tls1 ⊗ | TLS 1.0 mode for the |kSSLVersionMin| switch. ↪ |
| --tls1.1 ⊗ | TLS 1.1 mode for the |kSSLVersionMin| switch. ↪ |
| --tls1.2 ⊗ | TLS 1.2 mode for |kSSLVersionMax| and |kSSLVersionMin| switches. ↪ |
| --tls1.3 ⊗ | TLS 1.3 mode for |kSSLVersionMax| and |kSSLVersionMin| switches. ↪ |
| --top-chrome-touch-ui ⊗ | Controls touch-optimized UI layout for top chrome. ↪ |
| --top-controls-hide-threshold ⊗ | Percentage of the browser controls need to be hidden before they will auto hide. ↪ |
| --top-controls-show-threshold ⊗ | Percentage of the browser controls need to be shown before they will auto show. ↪ |
| --touch-devices[10] ⊗ | Tells chrome to interpret events from these devices as touch events. Only available with XInput 2 (i.e. X server 1.8 or above). The id's of the devices can be retrieved from 'xinput list'. ↪ |
| --touch-events ⊗ | Enable support for touch event feature detection. ↪ |
| --touch-selection-strategy ⊗ | Controls how text selection granularity changes when touch text selection handles are dragged. Should be "character" or "direction". If not specified, the platform default is used. ↪ |
| --touchscreen-usable-while-screen-off ⊗ | Chromebases' touchscreens can be used to wake from suspend, unlike the touchscreens on other Chrome OS devices. If set, the touchscreen is kept enabled while the screen is off so that it can be used to turn the screen back on after it has been turned off for inactivity but before the system has suspended. ↪ |
| --touch_view ⊗ | No description ↪ |
| --trace-config-file ⊗ | Causes TRACE_EVENT flags to be recorded from startup. This flag will be ignored if --trace-startup or --trace-shutdown is provided. ↪ |
| --trace-startup ⊗ | Causes TRACE_EVENT flags to be recorded from startup. Optionally, can specify the specific trace categories to include (e.g. --trace-startup=base,net) otherwise, all events are recorded. Setting this flag results in the first call to BeginTracing() to receive all trace events since startup. In Chrome, you may find --trace-startup-file and --trace-startup-duration to control the auto-saving of the trace (not supported in the base-only TraceLog component). ↪ |
| --trace-startup-duration ⊗ | Sets the time in seconds until startup tracing ends. If omitted a default of 5 seconds is used. Has no effect without --trace-startup, or if --startup-trace-file=none was supplied. ↪ |
| --trace-startup-enable-privacy-filtering ⊗ | If the perfetto tracing backend is used, this enables privacy filtering in the TraceEvent data sources for the startup tracing session. ↪ |
| --trace-startup-file ⊗ | If supplied, sets the file which startup tracing will be stored into, if omitted the default will be used "chrometrace.log" in the current directory. Has no effect unless --trace-startup is also supplied. Example: --trace-startup --trace-startup-file=/tmp/trace_event.log As a special case, can be set to 'none' - this disables automatically saving the result to a file and the first manually recorded trace will then receive all events since startup. ↪ |
| --trace-startup-owner ⊗ | Specifies the coordinator of the startup tracing session. If the legacy tracing backend is used instead of perfetto, providing this flag is not necessary. Valid values: 'controller', 'devtools', or 'system'. Defaults to 'controller'. If 'controller' is specified, the session is controlled and stopped via the TracingController (e.g. to implement the timeout). If 'devtools' is specified, the startup tracing session will be owned by DevTools and thus can be controlled (i.e. stopped) via the DevTools Tracing domain on the first session connected to the browser endpoint. If 'system' is specified, the system Perfetto service should already be tracing on a supported platform (currently only Android). Session is stopped through the normal methods for stopping system traces. ↪ |
| --trace-startup-record-mode ⊗ | If supplied, sets the tracing record mode and options; otherwise, the default "record-until-full" mode will be used. ↪ |
| --trace-to-console ⊗ | Sends a pretty-printed version of tracing info to the console. ↪ |
| --trace-to-file ⊗ | Sends trace events from these categories to a file. --trace-to-file on its own sends to default categories. ↪ |
| --trace-to-file-name ⊗ | Specifies the file name for --trace-to-file. If unspecified, it will go to a default file name. ↪ |
| --trace-upload-url ⊗ | Sets the target URL for uploading tracing data. ↪ |
| --translate-ranker-model-url ⊗ | Overrides the URL from which the translate ranker model is downloaded. ↪ |
| --translate-script-url ⊗ | Overrides the default server used for Google Translate. ↪ |
| --translate-security-origin ⊗ | Overrides security-origin with which Translate runs in an isolated world. ↪ |
| --true ⊗ | Value indicating whether flag from command line switch is true. ↪ |
| --trustable-web-bundles-file-url ⊗ | Accepts specified file URL of a trustable WebBundle file. This flag should be used only for testing purpose. ↪ |
| --trusted-cdn-base-url-for-tests[7] ⊗ | Specifies a base URL for the trusted CDN for tests. ↪ |
| --trusted-download-sources ⊗ | Identifies a list of download sources as trusted, but only if proper group policy is set. ↪ |
| --try-chrome-again ⊗ | Experimental. Shows a dialog asking the user to try chrome. This flag is to be used only by the upgrade process. ↪ |
| --try-supported-channel-layouts[1] ⊗ | Instead of always using the hardware channel layout, check if a driver supports the source channel layout. Avoids outputting empty channels and permits drivers to enable stereo to multichannel expansion. Kept behind a flag since some drivers lie about supported layouts and hang when used. See http://crbug.com/259165 for more details. ↪ |
| --tts[5] ⊗ | No description ↪ |
| --type ⊗ | Indicates the type of process to run. This may be "service-manager", "service-runner", or any other arbitrary value supported by the embedder. 指示要运行的进程的类型。 这可以是“服务管理器”，“服务运行器”或嵌入器支持的任何其他任意值。 ↪ |
| --ui-compositor-memory-limit-when-visible-mb ⊗ | No description ↪ |
| --ui-disable-partial-swap ⊗ | Disable partial swap which is needed for some OpenGL drivers / emulators. ↪ |
| --ui-disable-zero-copy ⊗ | No description ↪ |
| --ui-enable-layer-lists ⊗ | Switches the ui compositor to use layer lists instead of layer trees. ↪ |
| --ui-enable-rgba-4444-textures ⊗ | No description ↪ |
| --ui-enable-zero-copy ⊗ | No description ↪ |
| --ui-show-composited-layer-borders ⊗ | No description ↪ |
| --ui-show-fps-counter ⊗ | No description ↪ |
| --ui-show-layer-animation-bounds ⊗ | No description ↪ |
| --ui-show-paint-rects ⊗ | No description ↪ |
| --ui-show-property-changed-rects ⊗ | No description ↪ |
| --ui-show-screenspace-rects ⊗ | No description ↪ |
| --ui-show-surface-damage-rects ⊗ | No description ↪ |
| --ui-slow-animations ⊗ | No description ↪ |
| --unfiltered-bluetooth-devices ⊗ | Shows all Bluetooth devices in UI (System Tray/Settings Page.) ↪ |
| --uninstall[1] ⊗ | Runs un-installation steps that were done by chrome first-run. ↪ |
| --unlimited-storage ⊗ | Overrides per-origin quota settings to unlimited storage for any apps/origins. This should be used only for testing purpose. ↪ |
| --unsafely-allow-protected-media-identifier-for-domain ⊗ | For automated testing of protected content, this switch allows specific domains (e.g. example.com) to skip asking the user for permission to share the protected media identifier. In this context, domain does not include the port number. User's content settings will not be affected by enabling this switch. Reference: http://crbug.com/718608 Example: --unsafely-allow-protected-media-identifier-for-domain=a.com,b.ca ↪ |
| --unsafely-treat-insecure-origin-as-secure ⊗ | Treat given (insecure) origins as secure origins. Multiple origins can be supplied as a comma-separated list. For the definition of secure contexts, see https://w3c.github.io/webappsec-secure-contexts/ and https://www.w3.org/TR/powerful-features/#is-origin-trustworthy Example: --unsafely-treat-insecure-origin-as-secure=http://a.test,http://b.test ↪ |
| --upload-log-file ⊗ | Specifies the full path to a protocol buffer log file to be uploaded. ↪ |
| --use-adapter-luid ⊗ | Initialize the GPU process using the adapter with the specified LUID. This is only used on Windows, as LUID is a Windows specific structure. ↪ |
| --use-angle ⊗ | Select which ANGLE backend to use. Options are: default: Attempts several ANGLE renderers until one successfully initializes, varying ES support by platform. d3d9: Legacy D3D9 renderer, ES2 only. d3d11: D3D11 renderer, ES2 and ES3. warp: D3D11 renderer using software rasterization, ES2 and ES3. gl: Desktop GL renderer, ES2 and ES3. gles: GLES renderer, ES2 and ES3. ↪ |
| --use-cmd-decoder ⊗ | Use the Pass-through command decoder, skipping all validation and state tracking. Switch lives in ui/gl because it affects the GL binding initialization on platforms that would otherwise not default to using EGL bindings. ↪ |
| --use-cras[20] ⊗ | Use CRAS, the ChromeOS audio server. ↪ |
| --use-crash-handler-in-tests ⊗ | If present, the test harness will use the crash reporter. ↪ |
| --use-crash-handler-with-id ⊗ | Specifies the IPC pipe name of the crash handler to use (instead of starting a new crash handler process). ↪ |
| --use-fake-codec-for-peer-connection ⊗ | Replaces the existing codecs supported in peer connection with a single fake codec entry that create a fake video encoder and decoder. ↪ |
| --use-fake-device-for-media-stream ⊗ | Use fake device for Media Stream to replace actual camera and microphone. For the list of allowed parameters, see FakeVideoCaptureDeviceFactory::ParseFakeDevicesConfigFromOptionsString(). ↪ |
| --use-fake-mjpeg-decode-accelerator ⊗ | Use a fake device for accelerated decoding of MJPEG. This allows, for example, testing of the communication to the GPU service without requiring actual accelerator hardware to be present. ↪ |
| --use-fake-ui-for-media-stream ⊗ | Bypass the media stream infobar by selecting the default device for media streams (e.g. WebRTC). Works with --use-fake-device-for-media-stream. ↪ |
| --use-file-for-fake-audio-capture ⊗ | Play a .wav file as the microphone. Note that for WebRTC calls we'll treat the bits as if they came from the microphone, which means you should disable audio processing (lest your audio file will play back distorted). The input file is converted to suit Chrome's audio buses if necessary, so most sane .wav files should work. You can pass either <path> to play the file looping or <path>%noloop to stop after playing the file to completion. ↪ |
| --use-file-for-fake-video-capture ⊗ | Use an .y4m file to play as the webcam. See the comments in media/capture/video/file_video_capture_device.h for more details. ↪ |
| --use-first-display-as-internal ⊗ | Uses the 1st display in --ash-host-window-bounds as internal display. This is for debugging on linux desktop. ↪ |
| --use-gl ⊗ | Select which implementation of GL the GPU process should use. Options are: desktop: whatever desktop OpenGL the user has installed (Linux and Mac default). egl: whatever EGL / GLES2 the user has installed (Windows default - actually ANGLE). swiftshader: The SwiftShader software renderer. ↪ |
| --use-gpu-high-thread-priority-for-perf-tests ⊗ | Increases the priority (to REALTIME_AUDIO) of gpu process and compositor thread. This is only to be used for perf tests on macOS for more reliable values. ↪ |
| --use-gpu-in-tests ⊗ | Use hardware gpu, if available, for tests. ↪ |
| --use-legacy-metrics-service ⊗ | No description ↪ |
| --use-mobile-user-agent ⊗ | Set when Chromium should use a mobile user agent. ↪ |
| --use-mock-cert-verifier-for-testing ⊗ | Use the MockCertVerifier. This only works in test code. ↪ |
| --use-mock-keychain[8] ⊗ | No description ↪ |
| --use-system-clipboard ⊗ | Enables the ozone x11 clipboard for linux-chromeos. ↪ |
| --use-system-default-printer[21] ⊗ | Uses the system default printer as the initially selected destination in print preview, instead of the most recently used destination. ↪ |
| --use-temp-registry-path ⊗ | Override the registry with the specified temporary registry. Used for tests. ↪ |
| --use-vulkan ⊗ | Enable Vulkan support and select Vulkan implementation, must also have ENABLE_VULKAN defined. This only initializes Vulkan, the flag --enable-features=Vulkan must also be used to select Vulkan for compositing and rasterization. ↪ |
| --user-agent ⊗ | A string used to override the default user agent with a custom one. ↪ |
| --user-agent-product ⊗ | No description ↪ |
| --user-always-affiliated ⊗ | Always treat user as affiliated. TODO(antrim): Remove once test servers correctly produce affiliation ids. ↪ |
| --user-data-dir ⊗ | Directory where the browser stores the user profile. ↪ |
| --user-data-migrated[22] ⊗ | Indicates that this process is the product of a relaunch following migration of User Data. ↪ |
| --user-gesture-required ⊗ | Autoplay policy to require a user gesture in order to play. ↪ |
| --user-response-timeout ⊗ | Set the timeout for how long to wait for user response from Chrome, in minutes. 0 disables the timeout entirely. ↪ |
| --utility ⊗ | No description ↪ |
| --utility-and-browser ⊗ | No description ↪ |
| --utility-cmd-prefix ⊗ | The contents of this flag are prepended to the utility process command line. Useful values might be "valgrind" or "xterm -e gdb --args". ↪ |
| --utility-sampling ⊗ | No description ↪ |
| --utility-startup-dialog ⊗ | Causes the utility process to display a dialog on launch. ↪ |
| --utility-sub-type ⊗ | This switch indicates the type of a utility process. It is not used by Chrome but is added to the command line for debugging and profiling purposes. ↪ |
| --v ⊗ | Gives the default maximal active V-logging level; 0 is the default. Normally positive values are used for V-logging levels. ↪ |
| --v8-cache-options ⊗ | Set options to cache V8 data. (off, preparse data, or code) ↪ |
| --validate-crx ⊗ | Examines a .crx for validity and prints the result. ↪ |
| --validate-input-event-stream ⊗ | In debug builds, asserts that the stream of input events is valid. ↪ |
| --validating ⊗ | The command decoder names that can be passed to --use-cmd-decoder. ↪ |
| --variations-insecure-server-url ⊗ | Specifies a custom URL for the server to use as an insecure fallback when requests to |kVariationsServerURL| fail. Requests to this URL will be encrypted. ↪ |
| --variations-override-country ⊗ | Allows overriding the country used for evaluating variations. This is similar to the "Override Variations Country" entry on chrome://translate-internals, but is exposed as a command-line flag to allow testing First Run scenarios. Additionally, unlike chrome://translate-internals, the value isn't persisted across sessions. ↪ |
| --variations-server-url ⊗ | Specifies a custom URL for the server which reports variation data to the client. Specifying this switch enables the Variations service on unofficial builds. See variations_service.cc. ↪ |
| --version ⊗ | No description ↪ |
| --video-capture-use-gpu-memory-buffer ⊗ | Enables GpuMemoryBuffer-based buffer pool. ↪ |
| --video-image-texture-target ⊗ | Texture target for CHROMIUM_image backed video frame textures. ↪ |
| --video-threads ⊗ | Set number of threads to use for video decoding. ↪ |
| --video-underflow-threshold-ms ⊗ | Allows clients to override the threshold for when the media renderer will declare the underflow state for the video stream when audio is present. TODO(dalecurtis): Remove once experiments for http://crbug.com/470940 finish. ↪ |
| --video_capture ⊗ | No description ↪ |
| --virtual-time-budget ⊗ | If set the system waits the specified number of virtual milliseconds before deeming the page to be ready. For determinism virtual time does not advance while there are pending network fetches (i.e no timers will fire). Once all network fetches have completed, timers fire and if the system runs out of virtual time is fastforwarded so the next timer fires immediatley, until the specified virtual time budget is exhausted. ↪ |
| --vmodule ⊗ | Gives the per-module maximal V-logging levels to override the value given by --v. E.g. "my_module=2,foo*=3" would change the logging level for all code in source files "my_module.*" and "foo*.*" ("-inl" suffixes are also disregarded for this matching). Any pattern containing a forward or backward slash will be tested against the whole pathname and not just the module. E.g., "*/foo/bar/*=2" would change the logging level for all code in source files under a "foo/bar" directory. ↪ |
| --vsync-interval ⊗ | Overrides the vsync interval used by the GPU process to refresh the display. ↪ |
| --vulkan ⊗ | No description ↪ |
| --vulkan-null ⊗ | No description ↪ |
| --wait-for-debugger ⊗ | Will wait for 60 seconds for a debugger to come to attach to the process. ↪ |
| --wait-for-debugger-children ⊗ | Will add kWaitForDebugger to every child processes. If a value is passed, it will be used as a filter to determine if the child process should have the kWaitForDebugger flag passed on or not. ↪ |
| --wait-for-debugger-webui ⊗ | Flag used by WebUI test runners to wait for debugger to be attached. ↪ |
| --wait-for-initial-policy-fetch-for-test ⊗ | Used to tell the policy infrastructure to not let profile initialization complete until policy is manually set by a test. This is used to provide backward compatibility with a few tests that incorrectly use the synchronously-initialized login profile to run their tests - do not add new uses of this flag. ↪ |
| --wallet-service-use-sandbox ⊗ | Use the sandbox Online Wallet service URL (for developer testing). ↪ |
| --waveout-buffers[1] ⊗ | Number of buffers to use for WaveOut. ↪ |
| --web-otp-backend ⊗ | Enables specified backend for the Web OTP API. ↪ |
| --web-otp-backend-sms-verification ⊗ | Enables Sms Verification backend for Web OTP API which requires app hash in SMS body. ↪ |
| --web-otp-backend-user-consent ⊗ | Enables User Consent backend for Web OTP API. ↪ |
| --webapk-server-url[7] ⊗ | Custom WebAPK server URL for the sake of testing. ↪ |
| --webgl-antialiasing-mode ⊗ | Set the antialiasing method used for webgl. (none, explicit, implicit) ↪ |
| --webgl-msaa-sample-count ⊗ | Set a default sample count for webgl if msaa is enabled. ↪ |
| --weblayer-user-data-dir ⊗ | Makes WebLayer Shell use the given path for its data directory. ↪ |
| --webrtc-event-log-proactive-pruning-delta ⊗ | Sets the delay (in seconds) between proactive prunings of remote-bound WebRTC event logs which are pending upload. All positive values are legal. All negative values are illegal, and ignored. If set to 0, the meaning is "no proactive pruning". ↪ |
| --webrtc-event-log-upload-delay-ms ⊗ | WebRTC event logs will only be uploaded if the conditions hold for this many milliseconds. ↪ |
| --webrtc-event-log-upload-no-suppression ⊗ | Normally, remote-bound WebRTC event logs are uploaded only when no peer connections are active. With this flag, the upload is never suppressed. ↪ |
| --webrtc-event-logging ⊗ | Enable capture and local storage of WebRTC event logs without visiting chrome://webrtc-internals. This is useful for automated testing. It accepts the path to which the local logs would be stored. Disabling is not possible without restarting the browser and relaunching without this flag. ↪ |
| --webrtc-max-cpu-consumption-percentage ⊗ | Configure the maximum CPU time percentage of a single core that can be consumed for desktop capturing. Default is 50. Set 100 to disable the throttling of the capture. ↪ |
| --webrtc-stun-probe-trial ⊗ | Renderer process parameter for WebRTC Stun probe trial to determine the interval. Please see SetupStunProbeTrial in chrome_browser_field_trials_desktop.cc for more detail. ↪ |
| --webview-disable-safebrowsing-support ⊗ | used to disable safebrowsing functionality in webview ↪ |
| --webview-enable-vulkan ⊗ | Used to enable vulkan draw mode instead of interop draw mode for webview. ↪ |
| --webview-log-js-console-messages ⊗ | No description ↪ |
| --webview-safebrowsing-block-all-resources ⊗ | Enables SafeBrowsing and causes WebView to treat all resources as malicious. Use care: this will block all resources from loading. ↪ |
| --webview-sandboxed-renderer ⊗ | No description ↪ |
| --webview-verbose-logging ⊗ | WebView will log additional debugging information to logcat, such as variations and commandline state. ↪ |
| --whitelisted-extension-id ⊗ | Adds the given extension ID to all the permission allowlists. ↪ |
| --win-jumplist-action ⊗ | Specifies which category option was clicked in the Windows Jumplist that resulted in a browser startup. ↪ |
| --window-position ⊗ | Specify the initial window position: --window-position=x,y ↪ |
| --window-size ⊗ | Sets the initial window size. Provided as string in the format "800,600". ↪ |
| --window-workspace ⊗ | Specify the initial window workspace: --window-workspace=id ↪ |
| --windows-mixed-reality ⊗ | No description ↪ |
| --winhttp-proxy-resolver ⊗ | Uses WinHTTP to fetch and evaluate PAC scripts. Otherwise the default is to use Chromium's network stack to fetch, and V8 to evaluate. ↪ |
| --with-cleanup-mode-logs ⊗ | Identify that the elevated cleaner process is allowed to collect logs. This shouldn't be set if |kExecutionModeSwitch| is not ExecutionMode::kCleaner. ↪ |
| --wm-window-animations-disabled ⊗ | If present animations are disabled. ↪ |
| --xr_compositing[1] ⊗ | No description ↪ |
| --xsession_chooser[10] ⊗ | No description ↪ |
| --zygote ⊗ | Causes the process to run as a zygote. ↪ |
The Chromium Team has made a page on which they briefly explain how to use these switches.
These are rather technical. While most are pretty self-explanatory, keep in mind that any condition means that a switch isn't always available.
Based on top-of-tree Chromium code, updated daily and open source. RSS Feed?
Append ?date=YYYY-MM-DD to the URL to get a snapshot of the supported switches at a certain date.
