UltraWideo
The cross-browser extension that manipulates video aspect ratio to fit your entire screen. Take control over cinematic black bars. Netflix | Prime Video | Disney+ | Hulu | ESPN | + Many others...
11,692 users
Midnight Lizard
Custom color schemes for all websites: night mode, dark themes, blue light filter, screen shader, high contrast, grayscale, etc.
10,323 users
Open Link with New Tab
Open the link in a new tab depending on the setting.
9,278 users
WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
9,216 users
Refined GitHub
Simplifies the GitHub interface and adds many useful features.
8,705 users
Text Link & Google Translate
Non linked URL open with double click. and Google translate.
8,483 users
G App Launcher (Google™ Shortcuts)
Previously known as Google™ Shortcuts.Display all Google services as buttons or as a space-saving dropdown menu next to your address bar. Reach services like Gmail, Google Drive, Maps, Calendar, and many more in a single click from your browser.
8,203 users
Save Screenshot
Saves the current page as image file or copies it to clipboard.
7,488 users
JavaScript Switcher
A lightweight addon that adds a Toggle button in URL bar, for toggling JavaScript (on or off) individually per domain, and stores that for future visit. Works also with Firefox 57+.
6,991 users
Copy All Tab Urls
Copy All Tab Urls
6,501 users
Country Flag +
Shows country flag based on the server location of the active tab's url
6,442 users
Draw on Page
Easily draw on any website with simple drawing tools, then print the result.
6,418 users
Zoom for Firefox
Zoom in or out on web content using the zoom button and mouse scroll wheel for more comfortable reading. That to each percent value. It helps you to zoom easily in and out a web page. Thanks to the slider and the zoom buttons.
5,832 users
QR Code (Generator and Reader)
Generate QR Code from the url of current page, link or selected text. And decode QR Code in image.
5,825 users
Rutracker Torrent Search
Easy and quick search for books, music, videos in torrents.
5,813 users
Yomitan
Japanese dictionary with Anki integration
5,163 users
Full Screen for Firefox
Go full screen with one click on the full screen button. That includes also the full screen movies such as the YouTube, Vimeo, Dailymotion, Youku video player, etc.
4,941 users
Bionic Reader
- Apply Bionic Reading style with adjustable strength to a webpage. - Adjustable vowels for different languages. - Adjustable font family, font size, font weight and font opacity. - Support Unicode characters. - Apply dark mode to a webpage.
3,542 users
Lightbeam
Lightbeam is a Firefox browser extension that uses interactive visualizations to show you the relationships between third parties and the sites you visit.
3,480 users
ProtonDB for Steam
Shows ratings from protondb.com on Steam
3,310 users
TornTools
Tools for Torn users.
3,251 users
Sauce for Strava™
Additional functionality for your cycling and running analysis. This extension upgrades the Strava™ website.
3,189 users
YouTube LiveChat Flusher (Danmaku Chat)
Provides bullet chatting (danmaku) on YouTube Live, like niconico or bilibili.
2,906 users
OpenVideo - ad-free streaming
Watch all of the videos - but none of the ads! (...even on sites which block adblockers) OpenVideo creates a safe space on every video playing webpage - ideal for streaming sites bloated with ads and malware!
2,843 users
View Page Source
View the source code of a page with the click of a button.
2,424 users