fregante / webext-alert

alert() for background pages/workers in Web Extensions
https://webext-alert.vercel.app
MIT License
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webext-alert npm version

WebExtension module: alert() for background pages/workers in Web Extensions

Install

You can download the standalone bundle and include it in your manifest.json.

Or use npm:

npm install webext-alert
import alert from 'webext-alert';

Usage

alert('Hello from background script!');
alert from service worker in MV3

API

alert(message)

Uses alert() wherever possible, but falls back to a custom window with the same content.

If the native alert is used, this will block the execution of the background script until the user closes the alert.

If the custom window is used, webextAlert will return a promise that resolves when the user closes the window.

Known issues

Related

License

MIT © Federico Brigante