Startpage Privacy Protection
By installing the free Startpage Privacy Protection extension you will be able to stop trackers and cookies and set Startpage as your default search engine.
53,400 users
Redux DevTools
DevTools for Redux with actions history, undo and replay.
52,291 users
51,606 users
Watch2Gether
The official Watch2Gether Firefox extension allows you to share content from a supported site (Youtube, Vimeo, ...) directly into a Watch2Gether room. The new W2gSync feature allows you to sync-watch videos from any website on Watch2Gether.
51,594 users
51,225 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
51,016 users
Shinigami Eyes
Highlights transphobic/anti-LGBT and trans-friendly subreddits/facebook pages/groups with different colors. Supports Reddit, Twitter, Facebook, Tumblr, Medium, YouTube, Wikipedia, search engine results and all sites with Disqus comments.
51,001 users
Free VPN Proxy & Ad Blocker - Planet VPN
Unblock access to any website with our free VPN proxy Mozilla extension - Planet VPN
50,737 users
Proxy SwitchyOmega
Manage and switch between multiple proxies quickly & easily.
50,665 users
Avast SafePrice
Safe shopping extension. The best free price comparison and coupon finder online.
50,571 users
Ruffle - Flash Emulator
Putting Flash back on the web. Designed to be easy to use, this extension will seamlessly enable you to play flash content, with no extra configuration required!
49,256 users
Lilo - Search engine
add Lilo search engine to Firefox.Lilo is a fast and relevant search engine.Lilo gives its revenue to social and eco-friendly projects and acts for privacy.
48,903 users
BTRoblox - Making Roblox Better
BTRoblox, or Better Roblox, is an extension that aims to enhance Roblox's website by modifying the look and adding to the core website functionality by adding a plethora of new features.
48,395 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.
48,053 users
Adblock for Youtube™
Popular Adblock for Youtube™ Extension: Removes the video ads from Youtube™. Thanks to all AdBlock supporters!
48,037 users
Proton Pass
Free and unlimited password manager to keep your login credentials safe and manage them directly in your browser.
47,838 users
Print Friendly & PDF
Makes a Printer Friendly & PDF version of any webpage. Removes navigation, ads, and junk. Formats the page for print so you save paper and ink. Good for the environment and your wallet.
47,818 users
Nimbus Screen Capture: Screenshot, Edit, Annotate
★ Used by Several Million users on different platforms ★ 1) Screen capture web pages 2) Selected regions 3) Whole browser window 4) Slack upload Edit screenshots. Save images as local files or Google Drive. Tools for Annotation. Upload and share
46,484 users
IBM Aspera Connect
This add-on enables the use of IBM Aspera Connect with Firefox. This add-on requires the IBM Aspera Connect application, version 3.9.0 or newer. IMPORTANT: If you encounter an error "Download failed. Please check your connection", update Firefox.
45,722 users
Yandex.Bar
Advanced toolbar for Firefox
45,657 users
Notion Web Clipper
Use our Web Clipper to save any website into Notion.
45,117 users
Flight Tab Pro & Custom Web Search
Install the Flight Tab Pro & Custom Web Search extension to track flight status & access flight info by clicking the favicon on the toolbar & enjoy Yahoo® search from your browser.
45,045 users
Tab Auto Refresh
Automatically refresh tabs based on custom time intervals
44,804 users
44,482 users
XKit Rewritten
The enhancement suite for Tumblr's new web interface
44,096 users