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.
4,744 users
Timer (alarm, timer and stopwatch)
Stylish timer combined with stopwatch and alarm for your browser.
4,606 users
ClearMind — Block Porn/Adult Websites
ClearMind is a browser extension that helps overcome porn addiction. This extension blocks top ~1k most visited adult websites and allows users to customize the blocklist by adding their own rules.
4,578 users
AI warning for Steam
Adds features to increase the visibility of AI Generated Content Disclosures.
4,211 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.
3,983 users
PubPeer
This plugin adds links to existing PubPeer comments on journal websites and PubMed.
3,958 users
BetterBLOX - Better Roblox Extension
See when any Roblox user was last online, pick your server region, and reskin the whole site — free with BetterBLOX.
3,873 users
Checker Plus for Google Calendar™
See your next events, get meeting notifications and snooze events without opening the Google Calendar page!
3,864 users
Seznam Doplněk – Email
Seznam Doplněk – Email vás upozorní, když přijde nový e-mail, a zjednoduší práci s více Seznam účty.
3,473 users
Email Sent Dark Souls style
Dark Souls style notification for Gmail. Receive epic "Email Sent" notification once you send you email in Gmail.
3,272 users
Twitch Live
Twitch Live is a browser extension for Firefox that makes it easy to check which of your favorite Twitch.tv channels are currently live. You can also configure the extension to send you a notification when one of your favorite streams goes online.
3,206 users
Mind the Time
Keep track of how much time you spend on the web, and where you spend it. A toolbar ticker shows the time spent at the current site or the total time spent on the web today. A summary page sums up data for the past 70 days, 10 weeks, and 6 months.
3,174 users
Widilo.co.uk Cashback Reminder
Get cashback in one click on all your purchases when you shop online with the Widilo Cashback Reminder.
2,942 users
3DEarthViewMaps
3DEarthViewMaps helps you plan, customize, and print turn-by-turn directions for any trip. Add and reorder stops, check traffic, avoid slowdowns, find gas prices, and view routes in 3D or satellite mode—perfect for reliable navigation, even offline.
2,836 users
Keep Awake (Screen Only)
Keep your computer's screen from turning off with just one click.
2,735 users
PerkSpot: Save While You Shop
Take the savings from your employee discount program with you wherever you shop.
2,675 users
FoxFilter
Easy-to-use content filter that blocks websites and keywords, with optional protection designed to stay in place. Customizable for parental control, schools, and organizations.
2,584 users
