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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)
397 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

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)
363 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)
1,813 users

Add to Mailing list

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

Rated 2 out of 5 stars (4)
552 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)
119 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)
41 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
394 users