webext-active-tab [](https://www.npmjs.com/package/webext-active-tab)

January 31, 2025 · View on GitHub

WebExtension module: Track activeTab permission; automatically inject content scripts

The main use case is to ship your extension without host_permissions and have the user invoke the extension on click on any website.

Alternatively, consider using webext-permission-toggle and webext-dynamic-content-scripts to permanently receive access to certain hosts and automatically register content scripts on it.

Install

npm install webext-active-tab

This package exports various utilities, just import what you need.

on-active-tab - Watch when tabs receive activeTab
register-active-tab-scripts - Automatically inject scripts into tabs with activeTab

Note

Firefox has some limitations:

activeTab seems to be lost after a reload
further contextMenu clicks receive a moz-extension URL rather than the current page’s URL

webext-dynamic-content-scripts - Automatically registers your content_scripts on domains added via permission.request.
webext-events - High-level events and utilities for events in Web Extensions
Awesome-WebExtensions - A curated list of awesome resources for WebExtensions development.
More…