Top-Rated Extensions

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Adblock Edge No Restart

Adblock Edge is a fork of the Adblock Plus version 2.1.2 extension for blocking advertisements on the web, without sponsored ads whitelist.

**This addon will be discontinued on June 2015**

Rated 5 out of 5 stars (258)
816,224 users

Addons Quick Search

Type first letters of add-on name to find them in the list or press Ctrl+↑/↓ to switch between add-ons categories.
Additionally remember and restore last selected item in each list.

Rated 5 out of 5 stars (9)
677 users

Stacked Inspector

Switch DOM Inspector to an over/under vertical layout instead of the usual side-by-side panel layout.

Rated 5 out of 5 stars (9)
393 users

Disable DragAndDrop (Thunderbird)

A Thunderbird extension which disables drag and drop in the folder pane.
This extension prevents unintended folder movement.

Rated 5 out of 5 stars (9)
1,745 users

Nostalgy

Keyboard shortcuts to change folder, move/copy messages, with folder name auto-completion.

Rated 5 out of 5 stars (139)
9,419 users

Webpage Screenshot in Firefox (♥♥♥♥♥)

FireShot Webpage Screenshots captures pages entirely. Demo: http://bit.ly/RlBQMV

The screenshot can be quickly captured and:

― Saved as Image or PDF
― Sent to clipboard
― Printed
― Annotated *
― Uploaded *
― E-Mailed *

* OS Windows only

Rated 5 out of 5 stars (425)
275,482 users

Cleanest Addon Manager No Restart

Cleanup your Addon Manager

Rated 5 out of 5 stars (122)
26,776 users

SmilieInserter Plus

Insert smilies in messages.

Rated 5 out of 5 stars (17)
3,549 users

Restartless Restart No Restart

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

Rated 5 out of 5 stars (176)
45,719 users

Archive This

Provides keyboard shortcuts for filing messages into nine configurable "favorite" folders using user-defined keys. Also provides a simple filter system with a keyboard shortcut to file the currently selected message(s) into the correct folder.

Rated 5 out of 5 stars (22)
1,751 users

ConfirmFolderMove

Introduces a preference that allows users to be prompted before moving folders.

Rated 5 out of 5 stars (10)
4,333 users

TBDialOut

Place phone calls directly from Thunderbird's address book

Rated 5 out of 5 stars (8)
1,911 users

Link Properties Plus

Provides extended link properties: size of linked file, last modified time, etc.

Rated 5 out of 5 stars (13)
1,804 users

Execute JS

Execute JS is a enhanced JavaScript-Console, where you can comfortably enter and execute arbitrary JavaScript-Code and modify functions...

Rated 5 out of 5 stars (13)
6,192 users

Personas Shuffler No Restart

Change your Personas theme on each browser load.

Rated 5 out of 5 stars (12)
7,621 users

Mail Summaries

Adds a summary of mail accounts and folders to replace the account central pane and the empty folder preview

Rated 5 out of 5 stars (35)
4,897 users

QuickPasswords

Retrieve your Passwords the quick way! Never retype or display your secure passwords on screen anymore - put the password where you need it - the login form or the clipboard.

Now also includes single sign on change!

Rated 5 out of 5 stars (42)
8,597 users

AutoCopy 2

Copies selected text to the clipboard automatically.

Rated 5 out of 5 stars (56)
18,782 users

Transliterator No Restart

As-you-type phonetic conversion of text from one alphabet to another, as well as transliteration/detransliteration of selected text anywhere within documents. Supports multiple languages and custom transliteration schemes.

Rated 5 out of 5 stars (75)
7,804 users

Equations

Insert inline LaTeX equations into e-mail messages.

Rated 5 out of 5 stars (21)
210 users