NoScript Security Suite
The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.
309,099 users
Flagfox
Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...
118,799 users
Tomato Clock
Tomato Clock is a simple browser extension that helps with online time management.
37,453 users
Weather Extension
The best way to see the weather right in your browser. Easier than looking outside!
22,666 users
Livemarks
Get auto-updated RSS feed bookmark folders.
14,667 users
Keepa.com - Amazon Price Tracker
→ Price History charts → Price Drop & Availability Alerts → Over 1 billion tracked products → Supports Amazon .com | .co.uk | .de | .co.jp | .fr | .ca | .it | .es | .in | .mx
213,722 users
Avast Online Security & Privacy
Secure your Mozilla Firefox browser against real-time online threats, trackers, and scams. We’ll check every site you visit, from Facebook to your bank, so nothing puts you or your data at risk. Join a growing community of 400 million Avast users.
189,225 users
GNOME Shell integration
This extension provides integration with GNOME Shell and the corresponding extensions repository https://extensions.gnome.org
156,466 users
The Camelizer - Price Tracker
Add price history charts and price watch features to Firefox when viewing product pages on Amazon. Use it to make informed purchasing decisions and to receive price drop alerts via email, Twitter, or RSS feed.
68,561 users
Tab Auto Refresh
Automatically refresh tabs based on custom time intervals
47,720 users
Auto Refresh Page
Refresh web pages automatically. Auto-refresh and page monitor with specified time intervals.
27,318 users
Gmail™ Notifier (restartless)
Multiple account (or label) Gmail notifier (without storing passwords)
27,207 users
PhishWall
PhishWall
24,319 users
WEB.DE MailCheck
E-Mail Notifier für mehrere FreeMail Postfächer
22,958 users
Checker Plus for Gmail
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21,419 users
GMX MailCheck für Ihren Browser
E-Mail Notifier für mehrere FreeMail Postfächer
18,432 users
Distill Web Monitor
Monitor website changes and get SMS, email or push notifications on change.
14,059 users
G App Launcher (Google™ Shortcuts)
Previously known as Google™ Shortcuts.Display all Google services as buttons or as a space-saving dropdown menu next to your address bar. Reach services like Gmail, Google Drive, Maps, Calendar, and many more in a single click from your browser.
8,342 users
Censor Tracker
Censor Tracker is an extension that allows you to bypass Internet censorship, warns you about sites that transmit your data with government agencies, and detect new acts of censorship.
7,894 users
easyfundraising Donation Reminder
Never miss a donation for your charity or good cause again with the easyfundraising Donation Reminder.
7,433 users
Country Flag +
Shows country flag based on the server location of the active tab's url
6,618 users
Check4Change
Check4Change (aka C4C) is a simple extension that allows you to select a part of a web-page, and get notified when it changes.
6,007 users
Timer (alarm, timer and stopwatch)
Stylish timer combined with stopwatch and alarm for your browser.
5,355 users
Reload All Tabs
Reload all tabs using keyboard shortcut or toolbar button.
4,853 users
Prolific Assistant
Monitors https://prolific.com/ for new studies.
4,734 users