Midnight Lizard
This extension changes page colors, brightness and contrast to increase readability and brings dark night mode to all websites.
2,879 users
Dictionary (Google™ Translate) Anywhere
"Dictionary (Google™ Translate) Anywhere" extension provides access to a floating multilingual Google Translate panel on any webpage.
25,153 users
Video Speed Controller
Speed up, slow down, advance and rewind any HTML5 video with quick shortcuts.
17,968 users
ReloadMatic: Automatic Tab Refresh
ReloadMatic automates the periodic reloading / refreshing of browser tabs. It offers cache control, custom intervals, POST support and many other features. It also integrates with browser features such as tab restore, pinning, and incognito mode.
17,614 users
Dark Reader
Dark theme for every website. Care your eyes, use Dark Reader for night and daily browsing.
15,946 users
Feedbro
Advanced Feed Reader - Read news & blogs or any RSS/Atom/RDF source.
12,611 users
Reader
Reader is the ultimate Reader tool for Firefox.
22,062 users
Read Aloud: A Text to Speech Voice Reader
Read out loud the current web-page article with one click. Supports 40+ languages.
5,233 users
Search by Image - Reverse Image Search
Reverse image search using various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
54,564 users
SearchPreview
The main feature of SearchPreview is to enhance your search results pages. It inserts site preview images (thumbnails) and popularity ranks into Google™, DuckDuckGo™, Yahoo™ and Bing™ searches.
36,311 users
Search image
Select some text, right-click and choose"Search image" in the menu, a Google Image tab will open with your results.
38,153 users
Swift Selection Search
Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!
12,267 users
Emoji Cheatsheet
A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook. Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.
86,029 users
Facebook Container
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.
300,131 users
Social Fixer
Social Fixer for Facebook fixes annoyances, adds features, and enhances existing functionality to make FB more fun and efficient. Filter the news feed, hide sponsored posts and political posts, hide parts of the page you don't want to see, and more!
15,511 users
FB unseen
Blocks the ”seen” feature of the facebook messenger, and your friends will no longer be able to see if you read their messages.
6,756 users