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.
304 185 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...
115 386 users
Tomato Clock
Tomato Clock is a simple browser extension that helps with online time management.
36 483 users
Weather Extension
The best way to see the weather right in your browser. Easier than looking outside!
22 263 users
Livemarks
Get auto-updated RSS feed bookmark folders.
14 344 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
211 010 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.
183 634 users
GNOME Shell integration
This extension provides integration with GNOME Shell and the corresponding extensions repository https://extensions.gnome.org
153 146 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.
67 088 users
Tab Auto Refresh
Automatically refresh tabs based on custom time intervals
45 646 users
Auto Refresh Page - Herlaai webbladsye outomaties
Herlaai webbladsye outomaties. Outo-verfris en bladsymonitor met gespesifiseerde tydintervalle.
26 955 users
Gmail™ Notifier (restartless)
Multiple account (or label) Gmail notifier (without storing passwords)
26 595 users
PhishWall
PhishWall
24 157 users
WEB.DE MailCheck
E-Mail Notifier für mehrere FreeMail Postfächer
22 074 users
Checker Plus for Gmail™
Get desktop notifications, read, listen or delete emails without opening Gmail or Inbox by Gmail & easily manage multiple accounts.
21 030 users
GMX MailCheck für Ihren Browser
E-Mail Notifier für mehrere FreeMail Postfächer
17 666 users
Distill Web Monitor
Monitor website changes and get SMS, email or push notifications on change.
13 750 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.
8 373 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.
8 176 users
easyfundraising Donation Reminder
Never miss a donation for your charity or good cause again with the easyfundraising Donation Reminder.
6 955 users
Country Flag +
Shows country flag based on the server location of the active tab's url
6 450 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.
5 716 users
Timer (alarm, timer and stopwatch)
Stylish timer combined with stopwatch and alarm for your browser.
5 220 users
Prolific Assistant
Monitors https://prolific.com/ for new studies.
4 678 users
Reload All Tabs
Reload all tabs using keyboard shortcut or toolbar button.
4 668 users