Favicon Switcher
Replace ugly favicon by using your own images! Favicon Switcher allows you to customize the favicons for the sites that you visit. All you need to do is simply giving a url pattern and picking an image. Happy Browsing!
2,051 users
Enable Selection and Copy
Force enable text selection and copy. (mod by Gary) This is modded from another well-known addon and makes it function on local files also. Nothing else changed.
2,051 users
Extended Color Management
Ever wish that Firefox didn't use color management when viewing images or video? Turn it off easily with this add-on.
2,045 users
Music Mode for YouTube™
Hides the video and thumbnails on YouTube. Blocks the video keeping only the audio on YouTube Music. Additionally, it removes the ads from YouTube and allows YouTube to play in the background on mobile. Easy to use with many options.
2,045 users
Bring Twitter Back
Turns X back to Twitter by replacing all instances of the logo, replacing the new names ("post," "repost," etc.) with their old ones, and replacing the "X" name with "Twitter" on tabs and on the website.
2,039 users
DevTools Media Panel
DevTools panel that displays technical details about media elements and webrtc on the current page; intended primarily for web developers to understand media playback issues on their sites, and for users to provide more informative bug reports.
2,013 users
Auto Highlight
🟨 Auto Highlight will help you see what's important on the web! ✅ ⚡ Supports RegExp search and many style and highlight options ⭕ 🥷 Hide text by setting font size to zero!
1,955 users
Test & Feedback
Now everyone on the team can own quality. Capture findings, create issues, and collaborate with the team, directly from the browser.
1,941 users
Asciidoctor.js Live Preview
Render AsciiDoc (.ad, .adoc, .asciidoc) as HTML inside Firefox!
1,922 users
Sticky Notes
Put sticky notes on the web page. Jump to sticky from sidebar. Share stickies between browsers. (need login to server)
1,905 users
Website IP
Simple add-on that displays the current website IP address without a third party service. Converting the current tabs domain name to IPv4 & IPv6 via DNS lookup.
1,888 users
Dark Night Mode
It is a universal night mode for the entire Internet. It uses a special algorithm to automatically change the colors of the websites you visit into dark mode so that you can browse without straining your eyes, especially at night.
1,882 users
WebGL Fingerprint Defender
Defending against WebGL fingerprinting by reporting a fake value.
1,872 users
