devtools.panels

The devtools.panels API lets a devtools extension define its user interface inside the devtools window.

The devtools window hosts a number of separate tools - the JavaScript Debugger, Network Monitor, and so on. A row of tabs across the top lets the user switch between the different tools. The window hosting each tool's user interface is called a "panel".

With the devtools.panels API you can create new panels in the devtools window.

Like all the devtools APIs, this API is only available to code running in the document defined in the devtools_page manifest.json key, or in other devtools documents created by the extension (such as the panel's own document). See Extending the developer tools for more.

Types

devtools.panels.ElementsPanel

Represents the HTML/CSS inspector in the browser's devtools.

devtools.panels.ExtensionPanel

Represents a devtools panel created by the extension.

devtools.panels.ExtensionSidebarPane

Represents a pane that an extension has added to the HTML/CSS inspector in the browser's devtools.

Properties

devtools.panels.elements

A reference to an ElementsPanel object.

devtools.panels.themeName

The name of the current devtools theme.

Functions

devtools.panels.create()

Creates a new devtools panel.

Events

devtools.panels.onThemeChanged

Fired when the devtools theme changes.

Example extensions

• devtools-panels

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
create	Yes	79	54	?	Yes	No	?	?	No	?	?	?
elements	Yes	79	56	?	Yes	No	?	?	No	?	?	?
onThemeChanged	No	No	55	?	No	No	?	?	No	?	?	?
themeName	59	79	55	?	41	No	?	?	No	?	?	?

Example extensions

• devtools-panels