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/Web Extensions

theme

Enables browser extensions to update the browser theme.

To use this API, an extension must request the "theme" permission in its manifest.json file.

Note: When we set up a theme in a background file, we must declare the 'theme' permission and therefore we cannot use the theme function of the manifest, since it's not compatible.

Types

theme.Theme
Represents the content of a theme.

Functions

theme.getCurrent()
Gets the current browser theme.
theme.update()
Updates the browser’s theme.
theme.reset()
Removes any theme updates made in a call to theme.update().

Events

theme.onUpdated
Fired when the browser theme has been changed.

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
Theme
No
No
55
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No
No
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No
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getCurrent
No
No
58
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No
No
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No
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onUpdated
No
No
58
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No
No
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No
?
?
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reset
No
No
56
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No
No
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No
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update
No
No
55
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No
No
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No
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Example extensions

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/theme