Top-Rated Extensions

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XE.com Universal Currency Converter � Requires Restart

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.

Rated 5 out of 5 stars (16)
31 users

Console² Requires Restart

Console² (pronounced Console Squared or Console Two) replaces the JavaScript Console with what could be the next generation Error Console. From v0.5 includes the Console Filter extension previously available separately from the Console² website.

Rated 5 out of 5 stars (49)
6,046 users

NoiaButtons

The 'NoiaButtons' add-on offers cartoonish toolbar button icons (known from Noia themes) for default theme and lightweight themes. Further more lite silver and dark versions of Noia themes are included.

Rated 5 out of 5 stars (18)
16,294 users

EasyAccent Requires Restart

Allows entry of accented characters using natural shortcuts.

Rated 5 out of 5 stars (21)
1,499 users

Toggle JS

A simple toolbar button to quickly toggle javascript between enabled or disabled.
A green shield is shown when javascript is enabled and a red shield is shown when it is disabled

Rated 5 out of 5 stars (18)
10,737 users

Tab Groups Helper Requires Restart

Create and manage tab groups in a side-by-side list-view interface, or "Groups Bar" toolbar interface. Single or multi-tab close, bookmark, or move across groups. Search for tabs by title or content in current or all groups. Much more...

Rated 5 out of 5 stars (89)
5,225 users

Binnen-I be gone

This add-on likely is only useful for users who speak German or visit German language websites - it will remove so called "Binnen-Is" on webpages.

Rated 5 out of 5 stars (83)
1,357 users

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 (665)
430,542 users

HostAdmin Requires Restart

Switch domain-ip mapping by a SIMPLE CLICK. In addition, DNS would be refreshed whenever your change host by HostAdmin or Manually.

Rated 5 out of 5 stars (27)
13,277 users

Developer Edition theme enabler

**/!\ This theme is already built-in Firefox 53 and over /!\**
Enables the DevEdition theme on beta or release, and adds an entry in the Appearance's tab. Uninstalling this add-on removes the DevEdition theme from the add-on manager.

Rated 5 out of 5 stars (51)
9,617 users

GutscheinDoktor Gutschein-Melder Requires Restart

Unser Gutschein-Melder informiert dich vor JEDEM Einkauf, ob der GutscheinDoktor gratis Gutscheincodes für deinen Einkauf bereithält.

Rated 5 out of 5 stars (194)
747 users

Print Edit Requires Restart Featured

Allows editing of web page content while in Print Preview mode, prior to printing or saving as HTML or PDF. Compacts the layout and removes unwanted content such as adverts, sidebars and blank pages. Any element can be formatted, hidden or deleted.

Rated 5 out of 5 stars (295)
119,902 users

NoScript Security Suite Requires Restart Featured

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Rated 5 out of 5 stars (1,559)
2,283,103 users

F.B. Purity - Cleans Up Facebook

F.B. Purity hides the ads, app spam and other annoying clutter from your facebook news feed, lets you increase the font size, change colours plus many more features and generally makes Facebook a lot less annoying to use.

Rated 5 out of 5 stars (101)
31,347 users

Extension Auto-Installer

Extension Auto-Installer is a helper for Firefox/SeaMonkey/Thunderbird extension developers: it allows automatically adding or updating browser extensions, e.g. via command line tools. This makes testing your changes easier.

Rated 5 out of 5 stars (35)
3,069 users

GKeep Panel Requires Restart

Integrate your Google Keep with Firefox in a simple way. No need extra login!!!

Rated 5 out of 5 stars (26)
4,779 users

OneNote Web Clipper Compatible with Firefox 57+

Save anything on the web to OneNote. Clip it to OneNote, organize and edit it, then access it from any device.

Rated 5 out of 5 stars (253)
32,225 users

Input Language Assistant Requires Restart

Automatically switches input language to English when you type in address bar.

Rated 5 out of 5 stars (38)
1,301 users

Font Finder (revived) Compatible with Firefox 57+ Featured

Get all CSS styles of selected text

Rated 5 out of 5 stars (14)
8,992 users

Bookmark Quick Mover Requires Restart

Quickly move bookmarks.

Add all bookmark folders into bookmarks context menu to make moving bookmarks easier.

Rated 5 out of 5 stars (11)
803 users