Extras para Android

JavaScript Debugger por James Ross, Robert Ginda, outros

As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.

Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.

ProfileSwitcher por Paolo "Kaosmos"

It adds some options to launch easily other profiles and the Profile Manager.

Disable Add-on Compatibility Checks por Kris Maglione

Reinstates the extensions.checkCompatibility preference without respect to the current application version.

Thumbnail Zoom Plus por David Adler

Shows full image when you hover over a thumbnail. Works with Amazon, Baidu Images, Bing Images, Facebook, Flickr, Google+, Google Images, IMDb, LinkedIn, Netflix, Pinterest, Reddit, Twitter, Yandex, YouTube, Wikipedia, Yahoo Images, & many more.

Shrunked Image Resizer por Geoff Lankow

Addons Manager Hilite por custom.firefox.lady

Remembers last selected (hilited) extension/theme/plugin/userstyle in Add-ons Manager. Version 3.0 also includes sorting buttons. Turn off/on the add-on selection list box and/or fine tune behavior via its Options.

Customizations for Adblock Plus por eyeo GmbH

This extension provides various customization options for the Adblock Plus user interface.

AutoPager por Wind Li

AutoPager automatically loads next pages when you reach the end of a page. It works on a ton of sites,Google,Yahoo..
It works well with most other add-ons adblock plus, WOT and most of the greasemonkey scripts.
You can also try AutoPagerLite.

Browser Backgrounds por Baris Derin

Browser Backgrounds is the new Firefox extension that lets you install backgrounds directly on your browser.

Restartless Restart por Erik Vold

This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.

Classicish Add-on Manager por Dagger

A restyling of the Add-on Manager to a more native appearance.

Is It Compatible? por eternicode

**Notice: This addon is no longer maintained.** Are your addons compatible with the next version of Firefox? Find out straight from the Addons window! **Version 0.6.0 is available from the Versions page, it was never approved by AMO**

Multiple Addon Deactivator por ChrisLE

Multiple Addon Deactivator (M.A.D) is an addon that can (de)activate one, many or each addon at the same time

Console² por Philip Chee, zeniko

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.

Single Key Tab Switch por oyvindio

Single Key Tab Switch provides configurable single hotkeys for switching tabs, like the 'Single-key shortcuts' feature of the Opera browser.