Thunderbird Basic

by Christopher Kaschig

39 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.

MinimizeToTray revived by Nils Maier

Rated 4 out of 5 stars 337 reviews

207,895 users

Minimizes windows into the system tray.

Manually sort folders by Jonathan Protzenko

Rated 4 out of 5 stars 145 reviews

144,552 users

This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them, but in a better way. This extension also allows you to re-order accounts in the folder pane.

Mail Merge by Alexander Bergmann

Rated 5 out of 5 stars 147 reviews

59,518 users

Mass Mail and Personal Mail

German dictionary (de_DE) by bjacke

Rated 4 out of 5 stars 14 reviews

101,301 users

German dictionary igerman98 (de_DE, Germany), for Firefox, Thunderbird und Seamonkey.

Send Later by jikamens

Rated 5 out of 5 stars 84 reviews

70,322 users

True "Send Later" functionality to schedule the time for sending an email.

Quicktext by WizKid, R Kent James

Rated 4 out of 5 stars 332 reviews

94,334 users

Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.

CompactHeader by jmozmoz

Rated 5 out of 5 stars 174 reviews

128,729 users

Add symbol in header plane to switch between compact and expanded view. Options to switch between one or two lines compact view, which buttons should be displayed in header pane. For Thunderbird 36 and older use version 2.0.9 (see version history)

Remove Duplicate Messages by Thorsten W. Schmidt

Rated 4 out of 5 stars 138 reviews

49,312 users

If you have duplicate messages (e.g. from merging folders or downloading messages several times) you can use this tool to find and remove them from the selected folder and its subfolder by rightclicking on a folder and choosing "Remove duplicates..."

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

Rated 5 out of 5 stars 116 reviews

25,446 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!

Contact Tabs by speedball2001

Rated 4 out of 5 stars 53 reviews

19,371 users

Contact Tabs enhances Thunderbird to give you quick access to all your contacts directly from Thunderbird's main window: Use the powerful search field to find your contacts and open them in a new tab for viewing and editing.

XNote++ by Lorenz Froihofer

Rated 5 out of 5 stars 70 reviews

21,513 users

Persistent sticky notes for Thunderbird associated to mails.
This is a port to Thunderbird >= 3 based on XNote 2.1.0 ( https://addons.mozilla.org/en-US/thunderbird/addon/3093 ) with bugfixes and additional features.

Calendar Tweaks by DW-dev

Rated 4 out of 5 stars 56 reviews

15,710 users

Allows several tweaks to the Thunderbird/Lightning calendar user interface including new selection styles and repeating event icons. Mimics the colors and styles found in MS Outlook.

Certificate Patrol by Carlo v. Loesch, tg(x), others

Rated 4 out of 5 stars 77 reviews

11,367 users

Your browser trusts many certification authorities and intermediate sub-authorities quietly, every time you enter an HTTPS web site. This add-on reveals when certificates are updated, so you can ensure it was a legitimate change.

Tab Wheel Scroll by Matt H

Rated 4 out of 5 stars 126 reviews

10,824 users

Switch tabs by scrolling with the mouse wheel in the tab bar.
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