Add extensions, get work done

Emulate WebXR devices on your browser

Control the HTTP Referer on a per-site basis.

🗨️ Microsoft Copilot answer alongside Google results.

MIDI support for browsers

Check for best practices and common errors with your site's accessibility, speed, security and more.

4ebur.net VPN Proxy is a secure, anonymous internet connection.

Instant SEO analysis and website reviews for SEO, mobile, usability and social media. The freshest data when and where you want it.

php dev tools integrated to your browser

This is an extension that allows you to easily check SEO-related meta information and copy it with one click.

Blocks the ”seen” feature of the facebook messenger, and your friends will no longer be able to see if you read their messages.

Verify Google ReCaptcha V2 automatically with :2Captcha, DeathByCaptcha, ImageTyperz, RuCaptcha, Anti-Captcha, BestCaptchaSolver and EndCaptcha Without API or TOKEN key it won't work!!

An extension to help you gain full control of any website by redirecting traffic, replacing, editing, or inserting new content.

Open source browser design tools

Debug and test tag management (Google Tag Manager, Adobe Launch / DTM, Tealium) and analytics (Google Analytics, Adobe Analytics) implementations from within Developer Tools.

A Modern and simple API testing tool!

Web extension based version of LiveReload. Supports Firefox 57 (Firefox Quantum)

Share your current session on pathofexile.com with PoE Overlay

Provides a quick way of changing the HTTP Accept-Language header so you can view and test websites with a different locale.