Google Page Translate
Adds a toolbar button to open Google Page Translate for the current tab.
8,883 users
WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
8,870 users
Html Validator
HTML Validator is a Mozilla extension that adds HTML validation inside Firefox, Mozilla. The number of errors of a HTML page is seen on the form of an icon For Firefox 56, use 0.974 (see all versions below). For Firefox 57, see Web Extensions.
8,845 users
Activate Reader View
This add-on adds a button to the toolbar. Clicking on it activates the Reader View even if the icon in the address bar is not present.
8,842 users
Türkçe Yazım Denetimi
Türkçe Yazım Denetimi Turkish Spellchecker
8,810 users
Private Bookmarks
Enables a password-protected bookmark folder.
8,774 users
Instant Gaming
Browse the web for your favorite games and always know if they are available at Instant-Gaming.com !
8,746 users
Bookmarks clean up
Find and remove duplicated bookmarks manually and in batches, get rid of broken bookmark links and empty folders.
8,737 users
Angular DevTools
Angular DevTools extends Firefox DevTools adding Angular specific debugging and profiling capabilities.
8,727 users
Shortkeys (Custom Keyboard Shortcuts) for Firefox
Easily customizable custom keyboard shortcuts for Firefox. To configure this addon go to Addons (ctrl+shift+a) ->Shortkeys ->Options. Report issues here (please specify that the issue is found in Firefox): https://github.com/mikecrittenden/shortkeys
8,716 users
Instapaper
Instapaper is a simple tool for saving web pages to read later on your iPhone, iPad, Android, computer, or Kindle. The Instapaper browser extension may be used to save the current page directly into your Instapaper account.
8,709 users
Chameleon
Spoof your browser profile. Includes a few privacy enhancing options. A WebExtension port of Random Agent Spoofer.
8,681 users
Tab Counter
Add a badge to the toolbar that shows the number of currently open tabs in a window or all windows.
8,654 users
You.com | The Search Engine You Control
Sets Firefox's default search engine to You.com
8,654 users
Session Sync
Save sessions as bookmarks and access them across devices. Advanced Session Manager: edit, save, change, restore. It can also be your best Bookmark Manager
8,620 users
Refined GitHub
Simplifies the GitHub interface and adds many useful features.
8,616 users
Alitools shopping assistant
Auto-find & apply AliExpress ™ promo codes, price history, seller rating, similar products, find item by picture
8,589 users
Twitter Video Downloader | Fast and Free
Download Twitter Videos - Save any Twitter video and gif with one simple click. free, fast & easy to use.
8,582 users
Profile Switcher for Firefox
Create, manage and switch between browser profiles seamlessly.
8,582 users
Adaware AdBlock
By blocking annoying ads and nosy trackers, Adaware AdBlock nearly doubles your browsing speed! And with the most robust antivirus-level cloud-scanning technology of any ad blocker on the market, you’ll be safe from the latest cyber-threats.
8,568 users
Avast SecureLine VPN
Control your Avast SecureLine VPN from the comfort of your browser. Easily turn your VPN on and off, or change your server location, with our simple but powerful extension. All you need is Avast SecureLine VPN with a valid license.
8,566 users
8,562 users
Hide My IP Free
Hide Your IP Address and Unblock Websites for Free with the Hide My IP proxy and VPN IP network. Thousands of IPs around the world to choose from. Access your favorite streaming sites by changing your IP location. No ads or limitations.
8,540 users
8,530 users
Text Link & Google Translate
Non linked URL open with double click. and Google translate.
8,526 users