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Simple Popup Blocker

Simply toggle between three different popup blocking modes: allow all, allow requested or block all. Now with tracking protection.

Rated 5 out of 5 stars (24)
1,333 weekly downloads

Webutation - Reputation & Security

Would you like to know which websites are safe and which website you can trust?
The Webutation add-on shows you the reputation of a site with a simple green/yellow/red icon and scans websites against virus and bad userfeedback. Works similar to WOT.

Rated 3 out of 5 stars (62)
1,321 weekly downloads

Weather Underground (Forecast Plus) Featured

Provides local & long range Weather Forecast using Weather Underground

Rated 4 out of 5 stars (16)
1,253 weekly downloads

Skype™ Web Featured

Access to Skype Web from within a toolbar panel. You can use this app to call your friends without the need to switch current browser tab

Rated 4 out of 5 stars (5)
1,234 weekly downloads

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.

Rated 4 out of 5 stars (87)
1,212 weekly downloads

Twoo

You'll only ever be one click away from the latest news on Twoo, the world's friendliest social discovery platform.

Rated 4 out of 5 stars (8)
1,145 weekly downloads

Check4Change Requires Restart

Check4Change (aka C4C) is a simple extension that allows you to select a part of a web-page, and get notified when it changes.

Rated 4 out of 5 stars (162)
1,120 weekly downloads

Gmail panel Requires Restart

Check and do whatever you want into your Gmail easily with a panel.
It also alerts you the unread emails.
***You need to have enabled the "Unread message icon" (Settings > Labs)***

Rated 4 out of 5 stars (82)
1,028 weekly downloads

Distill Web Monitor (formerly AlertBox) Requires Restart

Monitor web page and feed for changes. Get SMS and email alerts when change is detected.

Rated 4 out of 5 stars (196)
978 weekly downloads

WEB.DE MailCheck for Firefox Requires Restart

Mail notifier for multiple email accounts

Rated 4 out of 5 stars (38)
869 weekly downloads

Work Offline Requires Restart

Adds work offline mode UI to Mozilla Firefox.

Rated 4 out of 5 stars (51)
861 weekly downloads

WhatsApp™ Messenger

Access to WhatsApp Web from within a toolbar panel and get badge notification of unread threads

Rated 5 out of 5 stars (15)
853 weekly downloads

Pray Times! Requires Restart

Display daily Muslim prayer times.

Rated 5 out of 5 stars (373)
853 weekly downloads

Google™ Keep

Google Keep is a handy and reliable extension designed to store your notes, lists and photos.

Rated 4 out of 5 stars (21)
851 weekly downloads

No-Script Suite Lite

Block Scripts (and more) on Untrusted Websites

Rated 4 out of 5 stars (16)
847 weekly downloads

Twitch Now

Twitch Now keeps users updated and connected to the Twitch experience outside of website.

Track your favorite streams easily with Twitch Now and get a notification when one of your favorite streams goes online.

Rated 5 out of 5 stars (13)
819 weekly downloads

PhishWall

PhishWall

Not yet rated
751 weekly downloads

GNOME Shell integration

This extension provides integration with GNOME Shell and the corresponding extensions repository https://extensions.gnome.org

Rated 4 out of 5 stars (3)
721 weekly downloads

Ciuvo - Price check in your Browser

Ciuvo finds best deals for your wanted product. Price check, comparison, customer reviews, product videos and coupons right in your web browser.

Rated 4 out of 5 stars (123)
717 weekly downloads

GMX MailCheck for Firefox Requires Restart

Mail notifier for multiple email accounts

Rated 3 out of 5 stars (18)
713 weekly downloads