Auto Fullscreen
Auto Fullscreen for Firefox Quantum
10,383 users
Vietnamese Dictionary
Enables spell checking in Vietnamese with a wordlist based on Hồ Ngọc Đức’s Free Vietnamese Dictionary Project.
10,378 users
YouTube™ Downloader Lite
A very lite YouTube downloader (FLV, WebM, 3GP, and MP4)
10,366 users
Telegram
Telegram Web
10,329 users
Video Downloader VeeVee
Video Downloader VeeVee – Download videos from the Internet.
10,272 users
Bookmark Dupes
Display/Remove duplicate bookmarks, empty folders or descriptions
10,220 users
Better PathOfExile Trading
A browser extension that enhances the pathofexile.com/trade experience.
10,195 users
Google Keep Notes
Google Keep Notes brings Google Keep right into your Firefox Sidebar.
10,193 users
10,166 users
Calendly: Meeting Scheduling Software
Eliminate the back-and-forth of scheduling. Manage your meetings, scheduling links, and contacts — all in one place, from wherever you’re already working online.
10,159 users
Video Downloader
Download video from your favorite sites with just one click!
10,149 users
HackBar
A HackBar for new firefox (Firefox Quantum). This addon is written in webextension and alternatives to the XUL version of original Hackbar. Press F12 to use HackBar
10,149 users
Archive Page
Archive webpage with archive.today
10,135 users
迅雷下载支持
该扩展用于实现迅雷11接管Firefox浏览器的下载请求。
10,123 users
Safeplex Search
Add the Safeplex Search extension to easily detect real-time threats & enjoy custom secure Yahoo® search from your browser search bar.
10,087 users
Better Canvas
Best dark mode for Canvas, plus other features
10,074 users
Slovak spell checking dictionary
Slovak spell checking dictionary for Mozilla applications (based on the "open-source" dictionaries by Zdenko Podobný).
9,989 users
Global Twitch Emotes
Twitch culture wherever you go! This extension replaces all Twitch.tv emote phrases with their actual emoticons
9,988 users
AudD® Music Recognition
Identify music from any website in your browser
9,971 users
FranceVerif
FranceVerif vous permet d'acheter en toute sécurité et toujours au prix réel, les produits dont vous avez envie.
9,956 users
Lingocloud - Web Translation Extension
Lingocloud is a bilingual translation extension, delivers a native reading experience at the Click of a button.
9,956 users
Pinned Google Calendar
Go to the pinned Google Calendar tab. If it doesn't exist, it's created.
9,938 users
Always on Top
Sets "Always on Top" style for your Firefox window
9,937 users
Twitter Video Downloader
Twitter video downloader extension that adds a download button to videos on Twitter. Brought to you by TwitterVid.com
9,927 users
British English Dictionary
British English Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey by David Bartlett. To enable, right-click in a multi-line text box, select "Languages", then "English / United Kingdom".
9,881 users