Extensions by Name

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Addressbooks Synchronizer

Synchronizes selected addressbooks with other instances of thunderbird
using ftp/webdav/imap servers

Rated 4 out of 5 stars (55)
35,338 users

AdRemind.Me

Want to keep your favourite Web sites alive even when you're using Adblock Plus? AdRemind.Me helps you to supporting your favourite Web sites in deactivating periodically Adblock Plus ad filters only on these sites for 20 seconds.

Rated 4 out of 5 stars (3)
2 users

Advanced Dork:

Advanced Dork: gives quick access to Google's Advanced Operators directly from the context menu...

Rated 5 out of 5 stars (19)
312 users

AdWords OK

Google Adwords Statistical Relevance View Expansion: Don't make decisions on average values. AdWords-OK expands your AdWords statistics by min and max-values. Your values will stay in the longterm with a probability of over 95% between this values.

Not yet rated
247 users

Ajustar

This extension adds a new button that adjust navigator window to page content.
Every web page has a width and height, and the navigator window usually is not fitted to the page content. With this extension you can read easier the web pages clicking ...

Not yet rated
5 users

AlexaTopSites No Restart

This add-on provides quick access to Alexa's Top Sites.

Rated 5 out of 5 stars (2)
885 users

All mail from all accounts

Add a toolbar button to send and receive all mail from all accounts for Leopard theme.

Rated 5 out of 5 stars (1)
438 users

Allow HTML Temp

This Add-on allows to have HTML temporarily allowed in the currently displayed message by only one click. When switching to another message, it'll be shown automatically again in plain text or simple html mode (if this is your default mode).

Rated 4 out of 5 stars (55)
11,896 users

AllowClipboard Helper

Manages security policies in user.js file with a convenient user interface...

Rated 3 out of 5 stars (45)
12,230 users

ALLYouTubeDownloader

ALLYouTubeDownloader extention (FLV/MP4/WebM; HD/HQ). Windows only. Works only with ALL YouTube Downloader 2.3 application or higher (versions 2.2 and lower doesn't work anymore).
Homepage: http://www.allplayer.org/youtube-to-allplayer

Rated 3 out of 5 stars (7)
116,174 users

Amazing Media Browser

A Multimedia Download Tool

Rated 3 out of 5 stars (21)
687 users

AMO Modifications No Restart

Back-logged AMO Editor Tool modifications

Not yet rated
8 users

Anaglyph 3D

Convert image to 3d image (anaglyph).

Rated 4 out of 5 stars (7)
1,564 users

Android Debug Bridge For Firefox No Restart

This addon adds some Android Debug Bridge access to Firefox. It requires access to the adb/adb.exe executable from the Android SDK.

Rated 5 out of 5 stars (2)
402 users

ArsTechnica Single Page Article No Restart

Shows a single page containing the whole multi page article.

Not yet rated
101 users

AuctionSearchKit

One-click eBay tools providing useful information to the buyer including a map of where items are located, past feedback on similar items and seller history/statistics.

Not yet rated
56 users

AutoCopy 2

Copies selected text to the clipboard automatically.

Rated 5 out of 5 stars (40)
15,964 users

AutoPager

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.

Rated 5 out of 5 stars (360)
119,473 users

autoPrint2

Prints incoming mails automatically. This addon enables a print action in the message filters.

Rated 5 out of 5 stars (5)
903 users

AutoProxy

Are you concerned about your privacy? Or, are you blocked from some websites by a firewall? And, are you arming yourself with a proxy? In that case, AutoProxy is designed for you! A tool to help you use your proxy automatically & efficiently.

Rated 4 out of 5 stars (366)
96,809 users