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QuickFolders (Tabbed Folders)

The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.

See new mail at a glance after automatic filtering - supports quickFilters addon!

Rated 5 out of 5 stars (190)
14,722 users

quickFilters

Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes. Create a filter in less than 10 seconds, it's as easy as: drag, click, click.

By popular demand, supports SORTING filters alphabetically.

Rated 5 out of 5 stars (72)
12,054 users

FiltaQuilla

Adds many new mail filter actions - launch a file, suppress notification, remove star or tag, mark replied or unread, copy as "read", append text to subject.

Rated 4 out of 5 stars (100)
15,585 users

ThunderLink Requires Restart

Clickable, durable links to specific messages inside Thunderbird.

Rated 4 out of 5 stars (21)
179 users

Gantt View Requires Restart

Gantt Chart view for Sunbird/Lightning

Rated 4 out of 5 stars (36)
54 users

QuickPasswords Requires Restart

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 SSO change (multi-domain pw) and Backup + Restore.

Rated 5 out of 5 stars (53)
35 users

Launchy Requires Restart

Launchy will enable you to open links and mailto's with external applications...

Rated 3 out of 5 stars (87)
12 users

SubSwitch

Simplify email categorization - it will be easier for you and others to manage mail. Define the set of prefixes for all emails you send or let SubSwitch to autodiscover it. While writing insert prefix to the title - choose one from your set.

Rated 4 out of 5 stars (16)
203 users

Opacus SugarCRM 6.2+ Thunderbird Integration Pro Requires Restart

SugarCRM 6.2.0-8.x/SuiteCRM 7.x Integration for Thunderbird

Enables archiving of emails into SugarCRM and SuiteCRM from Thunderbird. Requires a purchased license key (you can request a trial from within the extension).

Rated 3 out of 5 stars (6)
63 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 (204)
13 users

QuickFilterPlus

Adds personal filters to quickfilter toolbar

Rated 4 out of 5 stars (1)
1 user

Mark All Read Button Postbox Requires Restart

Adds a toolbar button to mark all emails as read.

Rated 5 out of 5 stars (3)
4 users

Mail Extractor

Mail Extractor for Thunderbird quickly extracts and copies email addresses from selected messages. It now also downloads attachments as ZIP files.

Rated 4 out of 5 stars (7)
305 users