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Message Mover

This add-on lets you move messages from a specific folder (and sub-folders) to a new folder.

Rated 4 out of 5 stars (10)
438 users

RainbowNote

Notes with rainbow colors.
7 notepads are utilized as several memos if needed.
Or, these 7 notepads are used by days of the week.

February 28th 2021.

Sungho Hwang.

I love God.

Rated 4 out of 5 stars (1)
161 users

AutoMover

An extension that auto-moves new emails in folders

Not yet rated
87 users

GMail Labels

Shows GMail labels in each message's headers panel. When using Thunderbird with a Gmail account, it is not possible to guess which Gmail labels a message was applied (and in which folders it can be found). This extension provides this information

Rated 4 out of 5 stars (18)
829 users

WhatsApp - Thunderbird

Adds browser action icon to toolbar to open WhatsApp.

Rated 1 out of 5 stars (1)
203 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
10 users

Simple Startup Minimizer

This extension will minimize Thunderbird on startup, it is very simple and I didn't put much work into it but it should work on all platforms. Please let me know if you want more features added into it.

Rated 4 out of 5 stars (31)
7,417 users

Smileyfixer

Fixes smileys that show in emails created by Outlook as J.

Rated 5 out of 5 stars (4)
905 users

TaskviewStyles

Change taskview styles.
Use justify button to read long sentences.
Executed well.

If coupling with TaskDescriptions, it is good enough!

To Hyun-geol who I like.

Not yet rated
12 users

ProtonMail Encryption Status

When using ProtonMail Bridge to integrate Mozilla Thunderbird withProtonMail, it's not easy to tell which emails were end-to-end (E2E) encrypted. This add-on puts an icon in the toolbar above every message to show you its encryption status.

Rated 5 out of 5 stars (6)
678 users

cb_thunderlink

cb_thunderlink is a thunderlink replacement.
Clickable, durable links to specific messages inside Thunderbird.

Rated 5 out of 5 stars (8)
159 users

Lojban spell check dictionary

Spell check dictionary for Lojban.

Not yet rated
2 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)
326 users

Dark Reader

Dark mode for every email. Take care of your eyes, use dark theme for night and daily messaging.

Rated 4 out of 5 stars (48)
10,736 users

Huastec spell checker Requires Restart

This is a spell checker for Huastec (Tének) language. It is based on the Potosina variety.

Copyright: Jesus Carretero. University Carlos III of Madrid. Spain

Thanks to Kevin Scannell (SLU, USA)

Not yet rated
1 user

Komi (kpv) spellchecker dictionary

Komi (kpv) dictionary for spell-checking in Firefox and Thunderbird

Rated 3 out of 5 stars (2)
11 users

Udmurt spellchecker dictionary

Udmurt dictionary for spell-checking in Firefox and Thunderbird

Rated 5 out of 5 stars (1)
0 users

Chechen [Noxchi] Spell Checker

Chechen Republic [Noxchi] Spell Checker

Rated 4 out of 5 stars (1)
1 user

Interlingua - Spelling dictionary

Dictionario orthographic pro Interlingua.
Spelling dictionary for Interlingua.

Not yet rated
1 user

Črkovalnik za slovenski jezik

Spell-checking dictionary for the Slovene language
Slovar za slovenski jezik

Rated 3 out of 5 stars (2)
116 users