Thunderbird Basic

by Christopher Kaschig

40 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.

Manually sort folders by Jonathan Protzenko

Rated 4 out of 5 stars 102 reviews

98,922 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 134 reviews

50,725 users

Mass Mail and Personal Mail

Contact Tabs by speedball2001

Rated 5 out of 5 stars 46 reviews

21,016 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.

Quicktext by WizKid

Rated 4 out of 5 stars 260 reviews

83,335 users

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

German dictionary (de_DE), new orthography by bjacke

Rated 4 out of 5 stars 12 reviews

99,294 users

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

Send Later by jikamens

Rated 5 out of 5 stars 36 reviews

56,719 users

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

CompactHeader by jmozmoz

Rated 5 out of 5 stars 167 reviews

155,290 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 115 reviews

48,390 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 105 reviews

25,246 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!

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

Rated 4 out of 5 stars 74 reviews

15,137 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.

XNote++ by Lorenz Froihofer

Rated 5 out of 5 stars 63 reviews

20,734 users

Persistent sticky notes for Thunderbird associated to mails.
This is a port to Thunderbird >= 3 and Seamonkey >= 2 based on XNote 2.1.0 ( https://addons.mozilla.org/en-US/thunderbird/addon/3093 ) with bugfixes and additional features.

Tab Wheel Scroll by Matt H

Rated 4 out of 5 stars 100 reviews

11,317 users

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

Chrome View by Lutz Issler

Rated 4 out of 5 stars 50 reviews

9,068 users

Open a page in Google Chrome (or SRware Iron) on Windows.
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