Power Thesaurus
Use the power of synonyms by button in toolbar, right-click or by word selection on any page.
8,844 users
Decentraleyes
Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.
246,543 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
427,565 users
Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
143,958 users
Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
73,418 users
Sink It for Reddit
Upgrade your Reddit experience with color coded comments, easier nav, sub-reddit blocking, gestures for upvoting, ad+nag blocking, and more. It's like RES, for mobile!
12,245 users
Control Panel for Twitter
Gives you more control over Twitter and adds missing features and UI improvements
44,334 users
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1,241,180 users
Read Aloud: A Text to Speech Voice Reader
Read out loud the current web-page article with one click. Supports 40+ languages.
194,394 users
Dark Mode
Dark theme and night shift mode for every website. Care your eyes, use Dark Mode for night and daily web browsing.
44,106 users
Sidebery
Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.
55,225 users
Turn Off the Lights for Firefox
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube and Beyond. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc.
44,170 users
Zoom Page WE
Zoom web pages (either per-site or per-tab) using full-page zoom, text-only zoom and minimum font size. Fit-to-width zooming can be applied to pages automatically. Fit-to-window scaling can be applied to small images.
19,634 users
Zoom Extension
Recommended, support Firefox 45+. The Zoom Firefox Extension allows participants to schedule Zoom cloud meetings directly from Google Calendar. You can start an instant meeting or schedule a future meeting with a button.
193,494 users
Hover Zoom+ (Official)
Zoom images/videos on all your favorite websites (Facebook, Amazon, etc). Simply hover your mouse over the image to enlarge it.
12,083 users