devtools

Enables extensions to interact with the browser's Developer Tools. You use this API to create Developer Tools pages, interact with the window that is being inspected, inspect the page network usage.

To use this API, you must specify the devtools_page manifest key. The use of this manifest key triggers an install-time permission warning about devtools. To avoid an install-time permission warning, mark the feature as optional by listing the "devtools" permission in the optional_permissions manifest key.

Note: The "devtools" optional permission is only supported by Firefox and not Chrome (Chromium issue 1143015).

Properties

devtools.inspectedWindow: Interact with the window that Developer tools are attached to (inspected window). This includes obtaining the tab ID for the inspected page, evaluate the code in the context of the inspected window, reload the page, or obtain the list of resources within the page.
devtools.network: Obtain information about network requests associated with the window that the Developer Tools are attached to (the inspected window).
devtools.panels: Create User Interface panels that will be displayed inside User Agent Developer Tools.

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Firefox for Android	Safari on iOS
`devtools`	Chrome – Full support Chrome 4 (Release date: 2010-01-25) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 41 (Release date: 2016-10-25) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`inspectedWindow`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`inspectedWindow.Resource`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`Resource.getContent`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote footnote Only base64 is supported for encoded content.	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote footnote Only base64 is supported for encoded content.	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote footnote Only base64 is supported for encoded content.	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`Resource.setContent`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote footnote Only resources with type "text" are supported.	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote footnote Only resources with type "text" are supported.	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote footnote Only resources with type "text" are supported.	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`Resource.url`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`inspectedWindow.eval`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`eval.$0`	Chrome – Full support Chrome 59 (Release date: 2017-06-05) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 55 (Release date: 2017-08-08) footnote Full support	Opera – Full support Opera 46 (Release date: 2017-06-22) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`eval.expression`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 55 (Release date: 2017-08-08) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`eval.inspect`	Chrome – Full support Chrome 59 (Release date: 2017-06-05) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 55 (Release date: 2017-08-08) footnote Full support	Opera – Full support Opera 46 (Release date: 2017-06-22) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`eval.options`	Chrome – Full support Chrome 58 (Release date: 2017-04-19) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 45 (Release date: 2017-05-10) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`options.contextSecurityOrigin`	Chrome – Full support Chrome 45 (Release date: 2015-09-01) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 32 (Release date: 2015-09-15) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`options.frameURL`	Chrome – Full support Chrome 45 (Release date: 2015-09-01) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 32 (Release date: 2015-09-15) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`options.scriptExecutionContext`	Chrome – Full support Chrome 107 (Release date: 2022-10-25) footnote Full support	Edge – Full support Edge 107 (Release date: 2022-10-27) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 93 (Release date: 2022-11-17) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`options.useContentScriptContext`	Chrome – Full support Chrome 45 (Release date: 2015-09-01) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 32 (Release date: 2015-09-15) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`inspectedWindow.getResources`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`inspectedWindow.onResourceAdded`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`inspectedWindow.onResourceContentCommitted`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`inspectedWindow.reload`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`inspectedWindow.tabId`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`network`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`network.getHAR`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 60 (Release date: 2018-05-09) footnote footnote The returned HAR log will be empty unless the user has previously activated the browser's network panel at least once.	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`network.onNavigated`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`network.onRequestFinished`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox 60 – 60 (Release date: 2018-05-09) footnote This event will only start firing after the user has activated the browser's network panel at least once. Firefox – Full support Firefox 61 (Release date: 2018-06-26) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 41 (Release date: 2016-10-25) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels.Button`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels.ElementsPanel`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 56 (Release date: 2017-09-28) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`ElementsPanel.createSidebarPane`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 57 (Release date: 2017-11-14) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`ElementsPanel.onSelectionChanged`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 56 (Release date: 2017-09-28) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels.ExtensionPanel`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`ExtensionPanel.createStatusBarButton`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`ExtensionPanel.onHidden`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`ExtensionPanel.onSearch`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`ExtensionPanel.onShown`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels.ExtensionSidebarPane`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 57 (Release date: 2017-11-14) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`ExtensionSidebarPane.onHidden`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 57 (Release date: 2017-11-14) footnote footnote This event is only fired when the user switches between sidebar panes, not when the user switches between devtools panels. See bug 1412317.	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`ExtensionSidebarPane.onShown`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 57 (Release date: 2017-11-14) footnote footnote This event is only fired when the user switches between sidebar panes, not when the user switches between devtools panels. See bug 1412317.	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`ExtensionSidebarPane.setExpression`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote footnote The expression must evaluate to a JavaScript object or a DOM node, or nothing is shown in the sidebar.	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote footnote The expression must evaluate to a JavaScript object or a DOM node, or nothing is shown in the sidebar.	Firefox – Full support Firefox 57 (Release date: 2017-11-14) footnote footnote Before Firefox 60, the expression must evaluate to an object that can be serialized to JSON, or nothing was shown in the sidebar. In particular, JavaScript cyclic objects and DOM nodes were not supported. See bug 1403130.	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote footnote The expression must evaluate to a JavaScript object or a DOM node, or nothing is shown in the sidebar.	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`ExtensionSidebarPane.setHeight`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`ExtensionSidebarPane.setObject`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote footnote If the `jsonObject` parameter is a string, it is not displayed.	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote footnote If the `jsonObject` parameter is a string, it is not displayed.	Firefox – Full support Firefox 57 (Release date: 2017-11-14) footnote footnote If the `jsonObject` is a string, then `rootTitle` must also be given, or `jsonObject` will not be displayed. See bug 1412310.	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote footnote If the `jsonObject` parameter is a string, it is not displayed.	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`ExtensionSidebarPane.setPage`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 57 (Release date: 2017-11-14) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels.SourcesPanel`	Chrome – No support Chrome 18 – 37 (Release date: 2012-03-28) altname altname Alternate name: ScriptsPanel Chrome – Full support Chrome 38 (Release date: 2014-10-07) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – No support Opera 15 – 24 (Release date: 2013-07-02) altname altname Alternate name: ScriptsPanel Opera – Full support Opera 25 (Release date: 2014-10-15) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`SourcesPanel.createSidebarPane`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`SourcesPanel.onSelectionChanged`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – No support Safari footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels.create`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`create.iconPath`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote footnote URL always resolved as absolute.	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote footnote URL always resolved as absolute.	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote footnote URL is resolved as relative to the current extension page (unless expressed as an absolute URL, e.g. '/icons/panel.png').	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote footnote URL always resolved as absolute.	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote footnote URL always resolved as absolute.	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`create.pagePath`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote footnote URL always resolved as absolute.	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote footnote URL always resolved as absolute.	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote footnote URL is resolved as relative to the current extension page (unless expressed as an absolute URL, e.g. '/icons/panel.png').	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote footnote URL always resolved as absolute.	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote footnote URL always resolved as absolute.	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`create.title`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 54 (Release date: 2017-06-13) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels.elements`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 56 (Release date: 2017-09-28) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels.onThemeChanged`	Chrome – No support Chrome footnote No support	Edge – No support Edge footnote No support	Firefox – Full support Firefox 55 (Release date: 2017-08-08) footnote Full support	Opera – No support Opera footnote No support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels.openResource`	Chrome – Full support Chrome 45 (Release date: 2015-09-01) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 32 (Release date: 2015-09-15) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`openResource.columnNumber`	Chrome – Full support Chrome 114 (Release date: 2023-05-30) footnote Full support	Edge – Full support Edge 114 (Release date: 2023-06-02) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 100 (Release date: 2023-06-29) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`openResource.lineNumber`	Chrome – Full support Chrome 45 (Release date: 2015-09-01) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 32 (Release date: 2015-09-15) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`openResource.url`	Chrome – Full support Chrome 45 (Release date: 2015-09-01) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 32 (Release date: 2015-09-15) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels.setOpenResourceHandler`	Chrome – Full support Chrome 18 (Release date: 2012-03-28) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels.sources`	Chrome – No support Chrome 18 – 37 (Release date: 2012-03-28) altname altname Alternate name: scripts Chrome – Full support Chrome 38 (Release date: 2014-10-07) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – No support Opera 15 – 24 (Release date: 2013-07-02) altname altname Alternate name: scripts Opera – Full support Opera 25 (Release date: 2014-10-15) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support
`panels.themeName`	Chrome – Full support Chrome 59 (Release date: 2017-06-05) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 55 (Release date: 2017-08-08) footnote Full support	Opera – Full support Opera 41 (Release date: 2016-10-25) footnote Full support	Safari – Full support Safari 16 (Release date: 2022-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support

Tip: you can click/tap on a cell for more information.

Full support: Full support
No support: No support
: See implementation notes.
: Uses a non-standard name
: Has more compatibility info.

Note: This API is based on Chromium's chrome.devtools API.

This page was last modified on Jul 17, 2025 by MDN contributors.

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