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Messenger for WhatsApp™

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

Rated 4 out of 5 stars (25)
16,794 users

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 (180)
16,433 users

Add-on Update Checker Requires Restart

Adds Tools menu item to check Add-ons for updates. Includes toolbar icon.

Rated 4 out of 5 stars (48)
15,973 users

WEB.DE MailCheck for Firefox Requires Restart

Mail notifier for multiple email accounts

Rated 4 out of 5 stars (37)
15,694 users

Distill Web Monitor - Legacy Requires Restart

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

Rated 4 out of 5 stars (201)
13,763 users

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)
13,198 users

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 (18)
13,152 users

PlugIn-Checker Compatible with Firefox 57+

The easiest and simplest way to check for PlugIn-Updates. Never forget to install the newest safe versions.

Rated 4 out of 5 stars (8)
12,625 users

Tab Auto Refresh Compatible with Firefox 57+ Featured

Automatically refresh tabs based on custom time intervals

Rated 4 out of 5 stars (27)
12,097 users

Ciuvo - Price check in your Browser Compatible with Firefox 57+

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 (122)
10,605 users

Popup blocker for FireFox - Poper Blocker Compatible with Firefox 57+

#1 Firefox add-on to block annoying popups, popunders & overlays in an easy & effective way. Browse without interference on all sites.

Rated 5 out of 5 stars (78)
10,519 users

GMX MailCheck for Firefox Requires Restart

Mail notifier for multiple email accounts

Rated 4 out of 5 stars (31)
10,066 users

easyfundraising Donation Reminder Compatible with Firefox 57+

Never miss a donation for your charity or good cause again with the easyfundraising Donation Reminder.

Rated 5 out of 5 stars (1)
9,851 users

PriceBlink - Price Comp & Coupons Compatible with Firefox 57+

**As seen on the Today Show, USA Today, ABC News**

Automatically finds lower prices and money-saving coupons from thousands of retailers while you shop. PriceBlink stays hidden until you are shopping. US and UK.

Demo: youtu.be/UKxMx5bT-QM

Rated 4 out of 5 stars (129)
9,822 users

ABV Notifier Requires Restart

Official ABV.bg notifier.

Rated 3 out of 5 stars (58)
9,293 users

HTML Desktop Notifications Requires Restart

Extension to add desktop notifications into firefox, the way it works with Chrome and Chromium Browser : works with gmail, gtalk (gmail chat), imo.im, and all other websites that use this technology.

Rated 4 out of 5 stars (48)
9,287 users

Panel View for Google™ Keep

A handy and reliable extension designed to store your notes, lists and photos.

Rated 5 out of 5 stars (27)
9,187 users

Myibidder Auction bid sniper for eBay ("Snipe it") Requires Restart

Add a Bid Sniper to eBay auctions. It's linked to www.myibidder.com (originally www.myibay.com) Auction bid sniper for eBay service website where you can snipe and monitor your auctions for free.

Rated 4 out of 5 stars (119)
9,075 users

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 (59)
8,826 users

Telify Requires Restart

Converts telephone numbers into clickable links for use with CTI applications, SIP clients, Skype, Netmeeting, snom phones, the AGFEO TK-Suite Client and SerVonic IXI-PCS.

Rated 3 out of 5 stars (56)
7,986 users