Recently Updated Extensions

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CardBook Requires Restart

A new Thunderbird address book based on the CardDAV and vCard standards.

Twitter: @CardBookAddon

Rated 4 out of 5 stars (221)
50,222 users
Updated Nov. 14, 2019

Phoenity Buttons Requires Restart

Adds some toolbar buttons using phoenity icons.
Displays message headers more compact (2 lines).

Rated 4 out of 5 stars (11)
1,607 users
Updated Nov. 13, 2019

Auto Address Cleaner T Requires Restart

Remove comment, display name from addresses before sending mail.

Rated 5 out of 5 stars (1)
6 users
Updated Nov. 13, 2019

Mail Summaries Requires Restart

Adds a summary of mail accounts and folders to replace the account central pane and the empty folder preview

Rated 5 out of 5 stars (44)
3,090 users
Updated Nov. 13, 2019

SubSwitch Requires Restart

Simplify email categorization - it will be easier for you and others to manage mail. Define the set of prefixes for all emails you send or let SubSwitch to autodiscover it. While writing insert prefix to the title - choose one from your set.

Rated 3 out of 5 stars (9)
564 users
Updated Nov. 13, 2019

Display Mail User Agent T Requires Restart

Displays the mail program with which the selected mail was written

*This addon is compatible with Thunderbird after Web Extesnsions support. Since development and operation check are done on Daily, it may not work on normal Thunderbird.

Not yet rated
1 user
Updated Nov. 12, 2019

Confirm-Address Requires Restart

Confirm E-mail address before sending mail

Rated 5 out of 5 stars (55)
26,914 users
Updated Nov. 12, 2019

SmartTemplate4 Requires Restart

SmartTemplate⁴ offers an easy and powerful way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every mail identity, Stationery files can now be imported and used directly.

Rated 5 out of 5 stars (57)
12,313 users
Updated Nov. 11, 2019

changeQuote Requires Restart

It's an extension that changes the format of reply mails.

Not yet rated
7 users
Updated Nov. 10, 2019

Minimize on Close Requires Restart

Causes Thunderbird's main window to minimize instead of closing. You can still close Thunderbird through the menu.

Rated 5 out of 5 stars (6)
19 users
Updated Nov. 10, 2019

Custom sync interval for Lightning Calendar Requires Restart

Allows custom synchronization intervals for remote calendars imported by Lightning Calendar (no fiddling in about:config necessary)

Not yet rated
0 users
Updated Nov. 10, 2019

ReFwdFormatter Requires Restart

Remove the ">" prefix from quote when you make a reply.

[Source code] https://github.com/isshiki/ReFwdFormatter

Rated 4 out of 5 stars (11)
2,954 users
Updated Nov. 10, 2019

Copy Patch Requires Restart

Copy email content to clipboard for application as patch.

Applies some filters, e.g. Outlook Safe Link unmangling, to ensure patch cleanness.

Not yet rated
2 users
Updated Nov. 10, 2019

Phoenity Icons Requires Restart

Phoenity icons for Thunderbird

Rated 5 out of 5 stars (4)
932 users
Updated Nov. 10, 2019

Mailing list filter Requires Restart

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

Rated 5 out of 5 stars (1)
118 users
Updated Nov. 10, 2019

MRC Compose Requires Restart

Remplace la liste d'adresses par les champs standards (Pour, Copie à, Copie cachée à) avec l'autocomplétion.
Provides standards fields (TO, CC, BCC) with autocomplete to Thunderbird's compose pane.
For bug reports, please use support email.

Rated 4 out of 5 stars (59)
2,142 users
Updated Nov. 10, 2019

Account Colors Requires Restart

Associates user-defined colors with accounts and identities. Applies these colors to accounts, identities, folders, message list, message headers and compose headers. Users will always know which accounts/identities they are working with.

Rated 4 out of 5 stars (121)
12,639 users
Updated Nov. 9, 2019

Mark GMail Read Requires Restart

Automatically marks all messages in the [Gmail] folder and all subfolders as read. If your GMail uses localized (translated) Gmail folder names, you set them in Thunderbird preferences: extensions.mark_gmail_read.folder_names.(all_mail|important|star

Rated 3 out of 5 stars (5)
122 users
Updated Nov. 8, 2019

AttachmentExtractor Continued Requires Restart

This add-on is a (work in progress) fixed version of the original Add-on "AttachmentExtractor" which is no longer supported and fixed by the original author.

It Extracts all attachments from selected messages and then can delete, detach...

Rated 5 out of 5 stars (35)
1,853 users
Updated Nov. 8, 2019

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)
2,534 users
Updated Nov. 8, 2019