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AboutConfig

about:config for...

Rated 3 out of 5 stars (13)
1,112 users

Simple Locale Switcher

An easier management of the user interface language

Rated 5 out of 5 stars (6)
9,541 users

URLFilter No Restart

Block advertisement and access to adult sites

Rated 4 out of 5 stars (13)
5,681 users

Autohide Tabbar

This extension auto-hides the tab bar.

Rated 4 out of 5 stars (30)
6,926 users

Gnome Integration

Provides better integration with Gnome using standard notifications and other features

Rated 4 out of 5 stars (42)
3,796 users

Extension Auto-Installer No Restart

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 (12)
3,918 users

Show All Body Parts No Restart

Enable the View | Message Body As | All Body Parts message display mode.

Rated 5 out of 5 stars (16)
6,997 users

Gather the senders !

Select all the mails in a directory sent by the selected authors.

Rated 4 out of 5 stars (19)
2,059 users

WebDAV for Filelink

Adds the possibility to use a WebDAV store for Filelink. With this extension you can link attachments to a WebDAV service, for example as provided by Apache's mod_dav or some public services.

Rated 4 out of 5 stars (16)
1,661 users

Old-style smilies

Reverts the smilies in Thunderbird to those of version 2.

Rated 4 out of 5 stars (1)
2,078 users

ViewAbout

Enables access to various about: dialogs from the View menu.

Rated 4 out of 5 stars (14)
3,428 users

Adblock Plus No Restart 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 (4,865)
20,973,464 users

Show Password On Input

Gives an option to show the master password on input

Rated 4 out of 5 stars (11)
1,119 users

Master Password+

Various enhancements for build-in "master password" (MP)
-Locks master security device on demand or after specified time
-Prompts for MP on browser startup
-Suppresses all or duplicate MP prompts
-Locks up entire application or individual windows

Rated 4 out of 5 stars (110)
24,481 users

Correct Identity

Ever sent mail from the wrong email address because you forgot to select the correct identity in the compose window?

Rated 4 out of 5 stars (76)
6,523 users

Dropbox for Filelink

Add Dropbox support to Thunderbird's Filelink feature.

Rated 4 out of 5 stars (32)
20,175 users

Provider for Google Calendar

Allows bidirectional access to Google Calendar

Rated 4 out of 5 stars (985)
277,709 users

CookieKeeper No Restart

Extended Cookie Manager - Keep only wanted cookies.

Rated 4 out of 5 stars (37)
12,887 users

AddressBookTab

It adds a button that can be put in toolbars and that open the addressbook in a new tab

Rated 4 out of 5 stars (65)
13,856 users

Lightning Featured

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Rated 3 out of 5 stars (1,833)
1,072,144 users