Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
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Choose from thousands of extra features and styles to make Firefox your own.
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Gmail™ Notifier +
This add-on is not compatible with your version of Firefox because of the following:
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.
39,178 users -
Weather Forecast Plus
This add-on is not compatible with your version of Firefox because of the following:
Weather Forecast Plus is the easiest way to check the weather while you browse internet
26,942 users -
Tab Memory Usage
This add-on is not compatible with your version of Firefox because of the following:
Tab Memory Usage displays the amount of memory is used by each tab
34,287 users
Most Popular See all »
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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...This add-on is not compatible with your version of Firefox because of the following:
459,578 users -
Minimizes windows into the system tray.This add-on is not compatible with your version of Firefox because of the following:
197,280 users -
Read EPUB e-books and browse OPDS catalogs.This add-on is not compatible with your version of Firefox because of the following:
132,496 users -
Multiple account (or label) Gmail notifier (without storing passwords)This add-on is not compatible with your version of Firefox because of the following:
91,448 users -
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.This add-on is not compatible with your version of Firefox because of the following:
71,317 users -
block ads seamlessly on popular websitesThis add-on is not compatible with your version of Firefox because of the following:
66,116 users
Top Rated See all »
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Display daily Muslim prayer times.This add-on is not compatible with your version of Firefox because of the following:
7,779 users -
Welcome to BioLegend's Firefox Addon. This addon contains the latest information on Human and Mouse CD Molecules from the HLDA Workshop, Information on Cytokines and Chemokines, Pathway Posters, All the Latest News from BioLegend, and more...This add-on is not compatible with your version of Firefox because of the following:
97 users -
Mit dem Gutscheinfinder von Gutscheine-Live.de verpassen Sie keine Gutscheine mehr. Sobald Sie einen Shop betreten, zu dem ein Gutschein oder eine Sonderaktion in unserem System hinterlegt ist, werden Sie automatisch benachrichtigt.This add-on is not compatible with your version of Firefox because of the following:
1,156 users -
You do the shopping. We'll do the searching. It's that simple.This add-on is not compatible with your version of Firefox because of the following:
3,130 users -
Lets you perform conversions from your Firefox browser with a large amount of customization including the ability to select a number and convert it using a right-click. This tool is in Beta and no documentation is currently available.This add-on is not compatible with your version of Firefox because of the following:
33 users -
Minggl is a social interaction manager. The Minggl toolbar makes it easy to manage information, communication, and navigation across (and independent of) social networks. Minggl adds a "relationship layer" across all your sites.This add-on is not compatible with your version of Firefox because of the following:
3 users
Recently Added See all »
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A Popup Time and Date shower on ToolbarThis add-on is not compatible with your version of Firefox because of the following:
106 users -
Blocks fake phishing anime websites.
This add-on is not compatible with your version of Firefox because of the following:
124 users -
Website Truster.This add-on is not compatible with your version of Firefox because of the following:
9 users -
Adds context to Trump's not-quite-accurate tweets. Created by The Washington Post.This add-on is not compatible with your version of Firefox because of the following:
921 users -
Context sensitive Firefox education tool: an experimented created by Mozilla to promote Firefox Mobile and Sync to users on desktop who have bookmarked.
This add-on is not compatible with your version of Firefox because of the following:
14 users -
You can store websites in a list which are not supposed to execute JavaScript code. If they try to do so the Add-on warns you.
This add-on is not compatible with your version of Firefox because of the following:
209 users
See all 1280 extensions in Alerts & Updates »
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