jd's TB PowerUserPack

by john*doe

21 Add-ons in this Collection

Lightning by Mozilla Calendar Project

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.

FoxyProxy Standard by Eric H. Jung, groeg, others

Rated 4 out of 5 stars 342 reviews

290,545 users

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

Provider for Google Calendar by Philipp Kewisch

Rated 4 out of 5 stars 1,011 reviews

276,008 users

Allows bidirectional access to Google Calendar

United States English Spellchecker by jooliaan

Rated 3 out of 5 stars 165 reviews

462,989 users

United States English Spellchecker for Firefox, Thunderbird and SeaMonkey by Kevin Atkinson and Geoff Kuenning.

To enable, right-click in a multi-line text box, select "Languages", then "English (United States)".

German Dictionary by KaiRo

Rated 4 out of 5 stars 55 reviews

439,007 users

German Dictionary (new Orthography) for spellchecking in Mozilla products

LookOut by Aron Rubin

Rated 4 out of 5 stars 145 reviews

185,002 users

LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 179 reviews

144,832 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Image Zoom by Jason Adams

Rated 4 out of 5 stars 330 reviews

166,296 users

Adds zoom and rotation functionality for images...

Signature Switch by Achim Seufert

Rated 4 out of 5 stars 165 reviews

83,115 users

Switch the signature on/off or choose a new one from your predefined set...

Remove Duplicate Messages (Alternate) by eyalroz

Rated 4 out of 5 stars 141 reviews

61,252 users

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

Contacts Sidebar by Jeroen Peters

Rated 4 out of 5 stars 272 reviews

32,727 users

Displays the address books in a sidebar in Thunderbirds 3-pane-window and can be toggled with the F4 key or a toolbar button.

Visit my Contacts Sidebar site for recent versions and news.

QuickFolders (Tabbed Folders) by Realraven (Axel Grude), Alexander Malfait

Rated 5 out of 5 stars 107 reviews

22,770 users

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!

British English Dictionary by Mark Tyndall

Rated 3 out of 5 stars 422 reviews

223,368 users

British English Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey by David Bartlett.

To enable, right-click in a multi-line text box, select "Languages", then "English / United Kingdom".

Mailbox Alert by Tjebbe

Rated 4 out of 5 stars 103 reviews

17,334 users

Mailbox Alert allows you to specify, for each seperate mail folder, a message, sound and/or a system command that will be executed when new mail is found there. ...

Duplicate Contact Manager by Marian Steinbach, Copelnug

Rated 3 out of 5 stars 95 reviews

21,172 users

Facilitates handling of duplicates in your address book(s). Allow to search and remove similar contacts.
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