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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...

Rated 5 out of 5 stars (683)
11,811 weekly downloads

Popup Blocker (strict) Featured

Strictly block all popup requests from any website by default. A notification window is opened to allow you accept, reject, open the popup in background page, or redirect the current page to popup address

Rated 4 out of 5 stars (23)
8,414 weekly downloads

Gmail™ Notifier (restartless) Featured

Multiple account (or label) Gmail notifier (without storing passwords)

Rated 4 out of 5 stars (286)
4,690 weekly downloads

MinimizeToTray revived Requires Restart

Minimizes windows into the system tray.

Rated 4 out of 5 stars (337)
3,708 weekly downloads

Gmail™ Notifier + Featured

Gmail™ Notifier Plus alerts you of new email messages. Users can also read or reply to emails, delete or mark them as read, all without having to open a new window.

Rated 4 out of 5 stars (85)
3,055 weekly downloads

eBay for Firefox

See quick updates on all your activity while you browse the web with the official eBay app for Firefox.

Rated 2 out of 5 stars (302)
2,937 weekly downloads

ReminderFox Requires Restart

ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program.

Rated 4 out of 5 stars (538)
2,849 weekly downloads

Keepa.com - Amazon Price Tracker

→ Price History charts
→ Price Drop & Availability Alerts
→ Daily Drops, an overview of recent price drops
→ Huge frequently updated product database
→ Supports Amazon .com | .co.uk | .de | .co.jp | .fr | .ca | .cn | .it | .es | .in | .mx | .br

Rated 5 out of 5 stars (25)
2,061 weekly downloads

MyKey Interface Requires Restart

Interface between Firefox and MyKey.

Rated 4 out of 5 stars (25)
1,918 weekly downloads

WorldIP - Geo Add-on with Security Features Requires Restart

Professional Geo Add-on with security features and advanced network tools. Anti-phishing. Protection against DNS spoofing and fake sites. All DNS records for domain. The real location of web server, country flag, extended information about datacenter

Rated 5 out of 5 stars (122)
1,889 weekly downloads

AdBlocker Lite

block ads seamlessly on popular websites

Rated 4 out of 5 stars (31)
1,770 weekly downloads

Browser-Security

Browser Security - DER Schutz vor Phishing und Malware

Rated 4 out of 5 stars (3)
1,608 weekly downloads

Weather Forecast Plus Featured

Weather Forecast Plus is the easiest way to check the weather while you browse internet

Rated 4 out of 5 stars (49)
1,603 weekly downloads

Tab Memory Usage Featured

Tab Memory Usage displays the amount of memory is used by each tab

Rated 4 out of 5 stars (38)
1,464 weekly downloads

Auto-Hack-Tool

An add-on that helps Facebook/Android/Browser gamers to improve in their games.

Rated 5 out of 5 stars (8)
1,447 weekly downloads

PDF Download Requires Restart

Use PDF Download to do whatever you like with PDF files on the Web. Regain control and eliminate browser problems, view PDFs directly in Firefox as HTML, and use the all-new Web-to-PDF toolbar to save and share Web pages as high-quality PDF files.

Rated 2 out of 5 stars (690)
1,381 weekly downloads

PlugIn-Checker

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

Rated 3 out of 5 stars (11)
1,355 weekly downloads

Disable Add-on Compatibility Checks (Version 40+)

Reinstates the extensions.checkCompatibility preference.

Rated 4 out of 5 stars (3)
1,339 weekly downloads

FastestFox - Browse Faster Requires Restart

Save time by speeding up repetitive tasks. Get faster, parallelized downloads, see definitions, auto-load the next page, improve searching, and more. FastestFox will dramatically enhance your productivity!

Rated 4 out of 5 stars (494)
1,325 weekly downloads

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)
1,311 weekly downloads