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Show Outlook Appointments (vcal / ics) Requires Restart

An extension to show embedded Outlook calendar (vcal / ics) parts.

Thunderbird doesn't show calendar parts from Outlook appointment emails. This addon adds a button to download the embedded appointment as ICS to import it into another calendar.

Rated 4 out of 5 stars (1)
327 users
Added Jan. 7, 2019

CloudFile Provider for Dropbox

Uploads your large attachments to your Dropbox instead of sending them by email.

Rated 5 out of 5 stars (1)
99 users
Added Dec. 17, 2018

Open Google Calendar

Adds the Google Calendar web interface in a new Thunderbird tab. Creating and viewing events works like in a browser (Firefox, Chrome, ...)

Rated 4 out of 5 stars (14)
7,368 users
Added Nov. 23, 2018

BorderColors D Requires Restart

Shows a colorful border around the "New Message" window, so you can tell different identities apart.

Builds on the original BorderColors and the "GT" version, adding different border styles.

Rated 4 out of 5 stars (5)
647 users
Added Nov. 17, 2018

Provider for Exchange ActiveSync

Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync

Rated 5 out of 5 stars (2)
8,884 users
Added Nov. 5, 2018

Open With

Open With can open your web links in any browser installed on your computer.

Not yet rated
1,184 users
Added Oct. 30, 2018

Owl for Exchange

Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird

Rated 4 out of 5 stars (5)
176 users
Added Oct. 20, 2018

ConfirmBeforeDelete Requires Restart

Ask a confirm before to delete some items

Rated 3 out of 5 stars (2)
232 users
Added Oct. 14, 2018

Dictionary Search Requires Restart

A dictionary search tool, currently restricted to using dict.leo.org. This is just a personal learning little project, not endorsed by Leo GmbH. Sources at https://gitlab.com/apiraino/dict_search

Not yet rated
105 users
Added Sept. 30, 2018

Hide Caption Titlebar Plus ⁴

⦁ NEW! Floating Toolbars & Menus with autohide!
⦁ "Maximize your screen content space by adjusting window TitleBar, Tabs, Toolbars, etc!".
⦁ Multiple Configurable Actions for both screen-corner buttons: Application/'Home' & Close buttons!

Not yet rated
112 users
Added Sept. 29, 2018

URL Link Requires Restart

URL Link is a small Thunderbird extension that allows you to select a non-URL in a mail/news message or web-page, and open it in a browser window.

Rated 4 out of 5 stars (1)
2,567 users
Added Sept. 23, 2018

Seturgent Requires Restart

Sets the urgent flag (X11) of the Thunderbird window under Linux in case of new messages. Does ignore special folders like Drafts, Junk and such.

Rated 5 out of 5 stars (2)
35 users
Added Aug. 21, 2018

EasyRight2Left Requires Restart

Change direction from Left to Right and Right to Left for Persian, Arabic, Hebrew etc. This Thunderbird extension is based on ComposeRTF available in https://addons.thunderbird.net/en-US/thunderbird/addon/composertf/

Not yet rated
91 users
Added Aug. 21, 2018

Provider for CalDAV & CardDAV

This extension adds support for CalDAV & CardDAV accounts to the Thunderbird Sync manager "TbSync".

Rated 5 out of 5 stars (4)
5,295 users
Added Aug. 20, 2018

Mailing list filter Requires Restart

Mail filter search term using mailing lists (and not whole addressbooks).

Not yet rated
81 users
Added Aug. 2, 2018

YNote Requires Restart

Make some text notable on the each folder in folder's property dialog box.

Rated 5 out of 5 stars (1)
6 users
Added July 31, 2018

Thunderbird Addons Test

Change prefs so that you use addons.thunderbird.net as the provider for add-on downloads and updates.

Not yet rated
28 users
Added July 16, 2018

Events spanning multiple days Requires Restart

Displays multiple day events as a "spanning" event, without borders of the day-elements inside the month- and multiweek-view.

Rated 2 out of 5 stars (2)
3 users
Added July 7, 2018

EditEmailSubject-hotfix Requires Restart

Hotfix for EditEmailSubject version 2.1.0 by jisse44
https://addons.mozilla.org/de/thunderbird/addon/edit-email-subject/

- fixed: does not overwrite Message-ID and references with undefined

Not yet rated
5 users
Added July 4, 2018

Unmangle Outlook Safelinks Requires Restart

Users of Office 365 Advanced Threat Protection wil change
all url's in emails to redirect them to an Microsoft filter before opening.

This plugin wil change the url back to the original value.

Rated 4 out of 5 stars (1)
134 users
Added June 28, 2018