EPUBReader
Video Background Play Fix
Some sites may not work with Firefox for Android video background play feature. This add-on provides a quick fix by blocking the Page Visibility API and the Fullscreen API.
180,797 users
GIPHY for Firefox
Bring the power of a GIF search engine anywhere on the web. Respond to emails, tweets and more with GIFs quickly and easily. Add GIPHY GIFs to your Gmail, Facebook, Twitter and more. Just search, drag and drop or right click!
7,658 users
FoxClocks
FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.
11,649 users
Simple Translate
Quickly translate selected or typed text on web pages. Supports Google Translate and DeepL API.
313,281 users
801,776 users
523,551 users
460,153 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
50,558 users
Augmented Steam
Augments your Steam Experience
53,323 users
Steam URL Opener
Allows you to open URLs inside Steam Client to save the hassle of logging in normal browser (with a single click on a button).
4,760 users
ProtonDB for Steam
Shows ratings from protondb.com on Steam
3,137 users
7,833 users
1,416 users
8,948 users
AdBlocker for YouTube™
Remove all annoying ads from YouTube.
462,870 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
568,602 users
SponsorBlock - Skip Sponsorships on YouTube
Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app
437,395 users
YouTube NonStop
Tired of getting that "Video paused. Continue watching?" confirmation dialog? This extension autoclicks it, so you can listen to your favorite music uninterrupted. Working on YouTube and YouTube Music!
130,918 users
Web Archives
View archived and cached versions of web pages on 10+ search engines, such as the Wayback Machine, Archive․is, Google, Bing and Yandex
57,939 users
Google Scholar Button
Lookup scholarly articles as you browse the web.
109,934 users
Unpaywall
Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles.
61,418 users
LibKey Nomad
One-click access to millions of scholarly articles.
8,199 users