Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
137,811 users
EPUBReader
Read ePub files right in Firefox. No additional software needed!
134,798 users
3,485 users
Tabliss - New Tab
A beautiful New Tab page with many customisable backgrounds and widgets that does not require any permissions.
73,028 users
Vue.js devtools
DevTools extension for debugging Vue.js applications.
88,707 users
CanvasBlocker
Alters some JS APIs to prevent fingerprinting.
25,758 users
Sidebery
Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.
77,056 users
Language: English (US)
Firefox Language Pack for English (US) (en-US)
2,269,404 users
Download Manager (S3)
View and manage downloads from a tidy status bar.
59,986 users
Season Pass Pass
Travel back in time and pull rewards from any previous season pass
18,006 users
Google Translator for Firefox
With this addon you can translate any text to your own language with one click or hot-key. You can either translate the selected text, this way the translated text will overwrite the original selected text, or you can translate the full page too.
230,849 users
Video Download
Download video effortless directly from your favorite sites: YouTube, Twitter, Pinterest, Soundcloud & Twitch!
13,920 users
YouTube Video and Audio Downloader (WebEx)
Download YouTube videos in all available formats and extract the original audio files
138,442 users
AVG Online Security
AVG Browser Security and Web Reputation Plugin. Offering protection against known phishing and malware sites, improving your browsing overall browsing experience with crowd sourced web reputation rating.
72,067 users
Privacy Extension For WhatsApp™ Web
The Privacy Extension For WhatsApp™ Web hides your messages from unwanted glimpses until you hover over them. In the search bar, you can disable the blur effect on all messages manually and specify what elements to blur.
23,910 users
Auto Refresh Page
Refresh web pages automatically. Auto-refresh and page monitor with specified time intervals.
27,743 users
Dark Mode
Dark theme and night shift mode for every website. Care your eyes, use Dark Mode for night and daily web browsing.
28,833 users
网课小工具
一个 大学生网课 学习工具,火狐,谷歌,油猴支持.全自动任务,视频倍速
14,731 users
Audio Equalizer
Stylish audio equalizer in toolbar popup.
36,561 users
Flash Player
Flash Player runs and saves any flash file across the web. The Addon allows you to add any flash file into the app's playlist and access them on any website by simply clicking an extension icon.
56,586 users
YouTube mp3
The YouTube-mp3 Add-on generates a "MP3" button on YouTube. Convert YouTube to mp3 and download the file to your device.
35,534 users
My IP Hider VPN
My IP Hider VPN is number one tool for hiding your IP and unblocking any web site! If your Firefox version is less then 55 please install older My IP Hider VPN from "Version History" (https://goo.gl/7ZQQjZ)
14,228 users
Language: English (GB)
Firefox Language Pack for English (GB) (en-GB)
1,786,134 users
Keeper® Password Manager & Digital Vault
Protect and autofill passwords with the world's most trusted and #1 downloaded secure password manager and digital vault.
49,868 users
Ronin Wallet
A wallet for Sky Mavis's Ronin sidechain
28,006 users