Sets the badge text for the browser action. The badge is displayed on top of the icon.
Syntax
browser.browserAction.setBadgeText( details // object )
This API is also available as chrome.browserAction.setBadgeText().
Parameters
detailsobject.textstring. Any number of characters can be passed, but only about four can fit in the space.
Use an empty string -""- to clear the text.tabIdOptionalinteger. Set the badge text only for the given tab.
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
| Chrome | Edge | Firefox | Firefox for Android | Opera | |
|---|---|---|---|---|---|
| Basic support | Yes | Yes | 45 | No | Yes |
Examples
Add a badge indicating how many times the user clicked the button:
var clicks = 0;
function increment() {
browser.browserAction.setBadgeText({text: (++clicks).toString()});
}
browser.browserAction.onClicked.addListener(increment);
Acknowledgements
This API is based on Chromium's chrome.browserAction API. This documentation is derived from browser_action.json in the Chromium code.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
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