Extensions by Name

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.vcs Support Requires Restart

Import and export calendar files in vCalendar (.vcs) format

Rated 3 out of 5 stars (18)
8,681 users

3e Calendar Requires Restart

Adds support for 3e calendars

Rated 1 out of 5 stars (1)
509 users

A Better S/MIME GUI Requires Restart

Provides a better S/MIME GUI for Thunderbird.

Rated 3 out of 5 stars (2)
4 users

AastraClickToCall Requires Restart

Converts telephone numbers into clickable links for use with Aastra IP Phones

Not yet rated
20 users

abcTajpu Requires Restart

Type in accented letters, international characters or symbols into Firefox or Thunderbird, either simply by using a context menu (there being support for many languages), or quickly by keyboard macro (you can even define your own).

Rated 4 out of 5 stars (70)
3,162 users

About Add-ons Requires Restart

Adds an About button to extensions, themes, and languages in the Add-ons list.

Rated 4 out of 5 stars (9)
904 users

About Home Themer

Enables theming of the About:Home page by providing a simple redirect

Rated 5 out of 5 stars (1)
334 users

About Startup

Displays startup timings

Rated 4 out of 5 stars (15)
763 users

About:about Button

A button that lists all the about pages that exist. Some of these pages are also provided as separate buttons.

Rated 4 out of 5 stars (3)
310 users

about:config Button

Open about:config to change hidden settings that cannot be edited from the Options window. All Mozilla based programs have settings that can not be changed in the options window.

Rated 5 out of 5 stars (3)
2,908 users

about:kittens Requires Restart

Baby cats and kittens in the about box...

Rated 5 out of 5 stars (6)
22 users

about:support Requires Restart

A Mozilla Messaging addon to assist in product support.

Rated 4 out of 5 stars (5)
27 users

AboutConfig Requires Restart

about:config for...

Rated 3 out of 5 stars (13)
892 users

Account Colors Requires Restart

Associates user-defined colors with accounts and identities. Applies these colors to accounts, identities, folders, message list, message headers and compose headers. Users will always know which accounts/identities they are working with.

Rated 4 out of 5 stars (94)
11,877 users

Account Manager Toolbar Button Requires Restart

This is a small devision of Toolbar Buttons https://addons.mozilla.org/firefox/2377/ or
http://codefisher.org/toolbar_button/

Not yet rated
25 users

accountex Requires Restart

Export/Import Account Settings.....

Rated 2 out of 5 stars (28)
5,158 users

Adblock Edge

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 has been discontinued**

Rated 5 out of 5 stars (306)
405,435 users

Adblock Plus Featured

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Rated 5 out of 5 stars (4,842)
19,595,972 users

Add Birthdays To Calendar Requires Restart

Birthdays from addressbook-contacts will be added as events to Lightning...

Rated 3 out of 5 stars (22)
133 users

Add Signature Requires Restart

Simply add your signature manually (right mouse click) to your emails

Rated 3 out of 5 stars (36)
8,483 users