Equations Requires Restart

Insert inline LaTeX equations into e-mail messages.

RtoRe Requires Restart

Erase the R: when reply

Text2Link Requires Restart

Text2Link is a simple and easy-to-use way to copy the text of a link, or to open URLs and send emails to addresses not marked-up as HTML links.

xSearchbarT2 Requires Restart

Somewhere between Thunderbird 1.5 and Thunderbird 2 the message search bar disappeared. This extension restores the search bar. Thunderbird 2 and newer only.

Simple Search-For Extension Requires Restart

Adds a "Search for" item to Thunderbird's context menu, like in Firefox.

ThunderBrowse Requires Restart

Did your friend send you a cool link? Want to read the rest of that interesting article? Don't want to open up your web browser just to view it? You don't have to! Just view it in Thunderbird with ThunderBrowse!

ThreadBubble Requires Restart

Make Thunderbird resort threads by date when a new message arrives. *** This add-on is no longer required for new versions of Thunderbird! ***

Copy Link Name for Thunderbird Requires Restart

It's like Copy Link Name for Firefox but for Thunderbird!

Sender Name Requires Restart

TB Properties Requires Restart

Wanna know more about a link or image you see in Thunderbird? Do you really really really wish there was a properties box with the info about objects? Well..

Simple HT Jumper Requires Restart

A temporal simple jumper of HTML and Plan TEXT view mode on showing messages and replying messages for Thunderbird without changing the default setting.

FolderCheck Requires Restart

Allows you to easily tell Thunderbird to check multiple folders for messages

NotTo Requires Restart

Are you using mailing lists in Thunderbird ?
Do you forward a lot of mail ?

If so, this extension may be useful for you.

BorderColors Requires Restart

Color-codes compose windows depending the active e-mail identity, to avoid sending messages from the wrong account.

FireTray Requires Restart

A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...

Recipients Overview Requires Restart

“Who else got that mail?”

ManualJunkAction Requires Restart

Introduces an option to specifically set which folder manually marked junk will go to per account.

Spamness Requires Restart

Visual representation of how spam-like messages are.

Remove Duplicate Messages

Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).

Keyword Highlight Requires Restart

Keywordhighlight changes color/size/weight of your favorite keywords...