SoundFixer
Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!)
53 601 users
Don't track me Google
Removes the annoying link-conversion at Google Search / maps / ...
66 555 users
Enhancer for YouTube™
Paimk YouTube į savo rankas ir pagerink savo naudojimo potyrius!
573 346 users
FoxyTab
Collection of Tab Related Actions e.g. Duplicate, Close Duplicates, Close to the Left, Copy Title, Merge Windows, Save as PDF, Copy Urls Tab/All/Left/Right, Host keep/close/close other, Sort by URL/Title, Asce/Desc, Move, Reload, Reload Timer
20 948 users
Sidebery
Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.
74 377 users
AdBlocker for YouTube™
Remove all annoying ads from YouTube.
467 810 users
Tranquility Reader
Tranquility Reader improves the readability of web articles by removing unnecessary elements like ads, images, social sharing widgets, and other distracting fluff.
35 190 users
Download All Images
Easily save images with a wide range of customization features, such as file size, dimensions, and image type.
87 775 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
338 298 users
Cookie AutoDelete
Control your cookies! This WebExtension is inspired by Self Destructing Cookies. When a tab closes, any cookies not being used are automatically deleted. Keep the ones you trust (forever/until restart) while deleting the rest. Containers Supported
229 793 users
User-Agent Switcher and Manager
Spoof websites trying to gather information about your web navigation—like your browser type and operating system—to deliver distinct content you may not want.
95 072 users
To Google Translate
Right-click a section of text and click the Translate icon next to it to text translate or listen to it in your language.
968 612 users
Undo Close Tab
Allows you to restore the tab you just closed with a single click—plus it can offer a list of recently closed tabs within a convenient context menu.
41 842 users
History Cleaner
Deletes browsing history older than a specified number of days.
15 803 users
New Tab Override
New Tab Override allows you to set the page that shows whenever you open a new tab.
63 586 users
Foxy Gestures
Mouse gestures for Firefox. A web extension alternative to FireGestures created by a long time FireGestures user.
21 430 users
Swift Selection Search
Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!
11 047 users
Clippings
Save frequently-entered text for pasting later.
13 553 users
SingleFile
Save an entire web page—including images and styling—as a single HTML file.
57 290 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.
41 795 users
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
26 186 users
EPUBReader
Read ePub files right in Firefox. No additional software needed!
131 200 users
DownThemAll!
The Mass Downloader for your browser
207 359 users
Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
64 900 users
Easy Youtube Video Downloader Express
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.
564 532 users