Customize your browser with extensions from the Chrome Web Store.

Add new features to your browser and personalize your browsing experience.

Make Microsoft Edge your own with extensions and themes that help you personalise the browser and be more productive.

Extension Hub is a modern Windows application that makes it easy to discover, install, and manage browser extensions for Chrome, Edge, Firefox, and more — all from a single, clean interface. Say …

Download Firefox Extensions to add features that customize browsing. Protect passwords, find deals, enhance video, and block annoying ads with browser apps.

Prepare your extension as we begin testing a new extensions menu How to prepare your extension for the new extensions menu.

Across California, the University of California's Cooperative Extension offices are problem-solving centers -- the bridge between local issues and UC research. Our county-based staff is part of the …

Apr 14, 2026 · If you need more time to file, request an extension IR-2026-52, April 14, 2026 WASHINGTON — As the end of filing season approaches, the Internal Revenue Service reminds …

Download Firefox extensions and themes. They’re like apps for your browser. They can block annoying ads, protect passwords, change browser appearance, and more.

A browser extension is a software module for customizing a web browser. Browsers typically allow users to install a variety of extensions, including user interface modifications, cookie management, ad …