Top-Rated Extensions

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Simple Week View Requires Restart

A simple week view for Lightning, as in the print layout.

Rated 3 out of 5 stars (4)
79 users

PLUGIN NO LONGER BEING MAINTAINED Requires Restart

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Rated 3 out of 5 stars (6)
0 users

Esign Requires Restart

Электронная подпись для сообщений в Thunderbird на основе API клиента "ГУЦ"

Rated 5 out of 5 stars (1)
1 user

Evernote Tab Requires Restart

Add a button and a menu to open Evernote in tab.

Rated 3 out of 5 stars (8)
202 users

accountex Requires Restart

Export/Import Account Settings.....

Rated 3 out of 5 stars (26)
19 users

GNOME keyring password integration Requires Restart

Extension that allows Firefox and Thunderbird to store passwords in Keyring, Gnome's default password store.

Rated 3 out of 5 stars (18)
0 users

CardDAV Browser Requires Restart

A utility to browse vCards stored on a CardDAV server.

Rated 3 out of 5 stars (7)
106 users

pCloud for Thunderbird Requires Restart

Easily send large attachments with Thunderbird without leaving your email!

Rated 3 out of 5 stars (5)
20 users

InfoNotary Configurator for Mozilla Requires Restart

Configures Mozilla for work with certificates issued by InfoNotary Plc.

Rated 3 out of 5 stars (4)
32 users

Report Spam Requires Restart

Report spam is a Thunderbird plugging to report antispam errors. A new button is added to header tool bar in order to signal a message as a false positive (a ham that is tagged as spam) or a false negative (a spam not tagged as spam).

Rated 3 out of 5 stars (11)
199 users

Copy Folder Requires Restart

The missing Thunderbird "copy folder" feature! Copy folders or entire POP/IMAP accounts recursively to any location while maintaining folder structure.

Rated 2 out of 5 stars (65)
10,681 users

Periodic Memory Usage Dumper

Saves memory usage information periodically (mainly for troubleshooting), for web/addon developers.

Rated 4 out of 5 stars (2)
0 users

DOM Inspector Requires Restart

Inspect the DOM of HTML, XUL, and XML pages, including the mail...

Rated 3 out of 5 stars (6)
0 users

Rethread

This addon adds an entry in the right-click menu which re-threads selected messages together (groups selected messages into the same thread)". This is done by _modifying_ messages; the author of the addon declines any responsibility for data loss.

Rated 3 out of 5 stars (5)
6 users

Chat Notifier with Pop-Ups Requires Restart

Allows to be notified when you receive chat message in Thunderbird.

Rated 3 out of 5 stars (3)
17 users

Lovebird Requires Restart

Email organized around the people you care about.

Rated 3 out of 5 stars (3)
1 user

UMTools Requires Restart

Add new options to TB's Unsent Messages behavior.. ...

Rated 3 out of 5 stars (3)
0 users

Newsgroup Links Requires Restart

Displays a link to the Google groups url of a newsgroup post, and an option to copy it.

Rated 3 out of 5 stars (3)
0 users

PrivaConf

Automatically apply settings recommended by security and privacy experts.

Rated 3 out of 5 stars (3)
16 users

Mail Size Report Requires Restart

Report current size of mail with attachment files in status bar

Rated 3 out of 5 stars (3)
0 users