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Copy Message ID

Adds a button to the message view toolbar to copy the message ID to the clipboard. This is useful when sending email replies via the command line.

Rated 5 out of 5 stars (3)
381 users

Breton (br) Language Pack

Breton (br) Language Pack

Not yet rated
14,733 users

US English Medical Dictionary Requires Restart

Adds 7,500+ medical terms to the standard US English dictionary. Enabled by right clicking on a textarea, selecting "Languages" then "English (Medical)". For use in Firefox, Thunderbird and SeaMonkey.

Rated 1 out of 5 stars (2)
1 user

Hornjoserbski (hsb) rěčny pakćik

Upper Sorbian language pack for Thunderbird
Hornjoserbski rěčny pakćik za Thunderbird
Obersorbisches Sprachpaket für Thunderbird

Not yet rated
14,582 users

Add contact to CC by mentioning in body with @

Use @ to mention somebody on an email to link and add to the CC.

Rated 2 out of 5 stars (5)
340 users

Zivver for Thunderbird

This extension automatically detects Zivver messages and decrypts them on-the-fly using the Zivver API. Messages are decrypted only when actively displayed by the user and are never stored locally.

Not yet rated
9 users

Mongolian Spellchecking Dictionary

Mongolian Spellchecking Dictionary

Not yet rated
13 users

Copy Address

Copy email address to clipboard.

Rated 4 out of 5 stars (12)
1,740 users

Add to Mailing list

Add the current email (sender) to an existing mailing list.

Rated 2 out of 5 stars (4)
532 users

RepSel: Reply to all selected mails

Reply to all selected messages with a single button press. E.g., compose a reply to all emails in a folder or those matching a search. Req. permissions: menues to add UI, messageRead to get sender, compose to add recipients, storage for settings.

Rated 4 out of 5 stars (3)
115 users

TransliteRussian for Thunderbird

Печатаем по русски на разных клавиатурах.
E-Mails auf Russisch auf verschiedenen Tastaturen in Thunderbird.
Typing Russian on English, German and other keyboards without thinking about the layout.

Rated 4 out of 5 stars (1)
40 users

Dolnoserbski (dsb) rěcny pakśik

Lower Sorbian language pack for Thunderbird - Dolnoserbski rěcny pakśik za Thunderbird - Niedersorbisches/Wendisches Sprachpaket für Thunderbird

Not yet rated
14,604 users

PGPGeek

Quick & easy PGP encryption / decryption tool
* Save & use many public encryption keys to encrypt mail content
* Save & use many private decryption keys to decrypt mail content

Using openPGP.js

Open Source
https://github.com/pgpgeek/pgpgeek

Not yet rated
386 users