Thunderbird

by PeterPerlich

47 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,833 reviews

21,370,353 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

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.

United States English Spellchecker by jooliaan

Rated 3 out of 5 stars 159 reviews

522,894 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)".

Spanish (Spain) Dictionary by tnarik, RickieES

Rated 4 out of 5 stars 106 reviews

278,197 users

Spanish/Spain Dictionary

German Dictionary by KaiRo

Rated 4 out of 5 stars 55 reviews

493,663 users

German Dictionary (new Orthography) for spellchecking in Mozilla products

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 179 reviews

155,174 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Signature Switch by Achim Seufert

Rated 4 out of 5 stars 156 reviews

90,317 users

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

Quick Locale Switcher by ppclick

Rated 3 out of 5 stars 82 reviews

231,856 users

Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.

Extra Folder Columns by Joey Minta, Standard8

Rated 4 out of 5 stars 207 reviews

192,300 users

This extension is for those TB3 users who want the multiple-columns view that TB2 allowed

Quicktext by WizKid

Rated 5 out of 5 stars 250 reviews

76,252 users

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

Locale Switcher by bsmedberg

Rated 4 out of 5 stars 25 reviews

34,410 users

Displays a menu item for switching the application locale.

Add-on Compatibility Reporter by Mozilla

Help make Firefox better. The Add-on Compatibility Reporter enables you to report if the Firefox add-ons that you're using are working properly.

Contacts Sidebar by Jeroen Peters

Rated 4 out of 5 stars 271 reviews

36,920 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.

Mail Redirect by Pawel Krzesniak, Onno Ekker

Rated 4 out of 5 stars 121 reviews

31,644 users

Allow to redirect (a.k.a. "bounce") mail messages to other recipients.
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