Up & Coming Extensions

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Markdown Here Requires Restart

Write your email in Markdown, then make it pretty.

Rated 4 out of 5 stars (20)
8,855 users

Google+ Tab Requires Restart

Google+ Tab for Thunderbird

Rated 3 out of 5 stars (9)
2,447 users

Thunderbird Biff Requires Restart

This add-on provides a visual indicator of new Thunderbird mail availability in supported clients (Firefox, Sunbird) and Thunderbird itself. Note: you MUST install this add-on in BOTH Thunderbird and supported clients as there are both client AND ser...

Rated 4 out of 5 stars (39)
4,103 users

QuickArchiver Requires Restart

Clean up your inbox! While moving a mail the first time, QuickArchiver remembers the destination folder and enables you to move further mails with a single click. You can apply rules by sender, recipient and subject.

Rated 4 out of 5 stars (9)
1,231 users

Personas Shuffler

Change your Personas theme on each browser load.

Rated 5 out of 5 stars (12)
4,053 users

FlashGot Mass Downloader Requires Restart

Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.

Rated 5 out of 5 stars (537)
776,173 users

Restartless 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 4 out of 5 stars (216)
22,184 users

Exit Button Thunderbird Requires Restart

Adds a toolbar button to exit Thunderbird. Go to View menu, Toolbars, Customize... and drag the icon where you want...

Rated 3 out of 5 stars (9)
1,304 users

Display Mail User Agent Requires Restart

Displays icon for user agent of received mails.

Rated 4 out of 5 stars (104)
34,194 users

Contact Photos Requires Restart

Displays contact photos in the message header.

Rated 4 out of 5 stars (22)
2,253 users

Execute JS Requires Restart

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)
4,986 users

EditEmailSubject Requires Restart

This module allows you to change email subjects

Rated 4 out of 5 stars (37)
7,858 users

Extension List Dumper Requires Restart

This extension adds a button ("Dump list") to the Add-ons window. When this button is pressed, a new window is opened with the list of installed extensions, themes or plugins...

Rated 4 out of 5 stars (132)
4,243 users

Noia Fox options Requires Restart

Options manager and fixes for Noia Fox theme 3.x.x

Rated 5 out of 5 stars (15)
30,414 users

Stylish Tools Requires Restart

Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey

Rated 4 out of 5 stars (3)
1,443 users

AttachmentExtractor Requires Restart

Extracts all attachments from selected messages and then can delete, detach or mark-read.

Rated 4 out of 5 stars (179)
38,730 users

InspectorWidget Requires Restart

Adds toolbar button and context menus for invoking the DOM Inspector (DOMi) for either chrome or content elements.

Rated 5 out of 5 stars (9)
1,222 users

Folder Pane View Switcher Requires Restart

Add arrow buttons for rotating among folder views, and switch to "All Folders" view when hovering over the folder pane during drag & drop.

Rated 5 out of 5 stars (38)
10,849 users

Select Address Book Text Requires Restart

Copy and paste a name, phone number, address or other text from your Thunderbird address book quickly, with just a single menu click.

Rated 4 out of 5 stars (41)
5,824 users

Bamboo Feed Reader Requires Restart

Feed reader | RSS - ATOM - OPML

Rated 4 out of 5 stars (274)
17,468 users