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...
11 684 users
Color Picker
Search for the perfect color via an stylish color picker in a popup.
11 481 users
YouTube MP4
View YouTube videos in raw MP4 format. Get notifications about available videos and formats.
11 457 users
Search by Image on Google
Right click on an image to search Google for related images or versions in different sizes.
10 892 users
Midnight Lizard
Custom color schemes for all websites: night mode, dark themes, blue light filter, screen shader, high contrast, grayscale, etc.
10 686 users
Pixiv Toolkit
Convert ugoira to gif or/and webm, pack manga for downloading and download novel on Pixiv.
10 619 users
新同文堂
繁體簡體中文轉換工具
10 586 users
New Tab Tools
Customizes the new tab page. Add more tiles. Have a background image. Set new tile images and titles. See recently closed tabs. And more...
10 469 users
Modify Header Value
Add, modify or remove a header for any request on desired domains.
10 238 users
Auto Fullscreen
Auto Fullscreen for Firefox Quantum
10 171 users
Better Canvas
Best dark mode for Canvas, plus other features
9993 users
Always on Top
Sets "Always on Top" style for your Firefox window
9819 users
Youtube Ad Auto-skipper
Youtube Ad Skipper is an extension that auto skips ads after youtube provides a skip ad button. It does not block an ad.
9678 users
Clickbait Remover for Youtube
Replaces thumbnails and modifies titles of videos on youtube.com and m.youtube.com
9452 users
Open Link with New Tab
Open the link in a new tab depending on the setting.
9428 users
WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
9346 users
Activate Reader View
This add-on adds a button to the toolbar. Clicking on it activates the Reader View even if the icon in the address bar is not present.
9281 users
Adaware AdBlock
By blocking annoying ads and nosy trackers, Adaware AdBlock nearly doubles your browsing speed! And with the most robust antivirus-level cloud-scanning technology of any ad blocker on the market, you’ll be safe from the latest cyber-threats.
8792 users
Tab Counter
Add a badge to the toolbar that shows the number of currently open tabs in a window or all windows.
8747 users
Refined GitHub
Simplifies the GitHub interface and adds many useful features.
8650 users
Markdown Viewer Webext
Displays markdown documents beautified in your browser.
8608 users
Dark Mode for Wikipedia
Dark mode for English Wikipedia.
8460 users
テキストリンク&Google翻訳
リンクになってないURL文字列をダブルクリックで開けます Google翻訳もできます
8451 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.
8386 users
Tab Rotator
The Tab Rotator automatically switches between the open tabs of a browser window after a certain amount of time.
8313 users