Tile Tabs WE
Take tabs from parent windows and arrange them in layouts of tiled sub-windows, using the toolbar button, context menu or keyboard shortcuts. Makes it easy to browse, compare or monitor multiple pages. Synchronize scroll. Save and re-open layouts.
11,281 users
Color Picker
Search for the perfect color via an stylish color picker in a popup.
11,012 users
Pixiv Toolkit
Convert ugoira to gif or/and webm, pack manga for downloading and download novel on Pixiv.
10,758 users
YouTube MP4
View YouTube videos in raw MP4 format. Get notifications about available videos and formats.
10,628 users
Search by Image on Google
Right click on an image to search Google for related images or versions in different sizes.
10,360 users
Yandex Evolution
Popular Russian search engine by Yandex (Яndex, Яндекс)
10,339 users
New Tong Wen Tang
Traditional and Simplified Chinese Converter
10,218 users
Modify Header Value
Add, modify or remove a header for any request on desired domains.
10,103 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...
9,963 users
Auto Fullscreen
Auto Fullscreen for Firefox Quantum
9,888 users
Midnight Lizard
Custom color schemes for all websites: night mode, dark themes, blue light filter, screen shader, high contrast, grayscale, etc.
9,476 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.
9,389 users
Always on Top
Sets "Always on Top" style for your Firefox window
9,278 users
Clickbait Remover for Youtube
Replaces thumbnails and modifies titles of videos on youtube.com and m.youtube.com
9,131 users
Open Link with New Tab
Open the link in a new tab depending on the setting.
9,033 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.
8,614 users
WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
8,583 users
Dark Mode for Wikipedia
Dark mode for English Wikipedia.
8,562 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.
8,503 users
Tab Counter
Add a badge to the toolbar that shows the number of currently open tabs in a window or all windows.
8,462 users
Text Link & Google Translate
Non linked URL open with double click. and Google translate.
8,393 users
Refined GitHub
Simplifies the GitHub interface and adds many useful features.
8,298 users
Tab Rotator
The Tab Rotator automatically switches between the open tabs of a browser window after a certain amount of time.
8,088 users
Markdown Viewer Webext
Displays markdown documents beautified in your browser.
7,862 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.
7,841 users