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Compose Responsive Images

When writing new emails, newly inserted images are made responsive by setting style="max-width:100%" and removing width/height attributes.

Rated 5 out of 5 stars (2)
199 users

Dino Game

Play the Dino game from Google Chrome and challenge friends to beat your score.

Rated 5 out of 5 stars (1)
12 users

InsertSignature

Insert signature helps you to insert usually used text by your customization.

Rated 4 out of 5 stars (14)
1,442 users

Pywalfox

Dynamic theming of Thunderbird using your Pywal colors.

https://github.com/Frewacom/pywalfox

Rated 3 out of 5 stars (6)
289 users

Thread in same folder

Runs after junk classification and filtering to make sure a newly-received message lands in the same folder as its parent in a thread.

Not yet rated
52 users

New Tab

It's Open New Tab Within ThunderBird

Rated 5 out of 5 stars (4)
100 users

Skiff Mail

Integrates a Skiff Mail button into the Spaces toolbar. It opens the Skiff Mail website in a new tab.

Not yet rated
11 users

HTML Source Editor

Allows to edit the source of the currently composed message. A simple alternative to ThunderHTMLedit.

Rated 5 out of 5 stars (13)
5,166 users

Dropbox Paper

How Does It Work?
Once you install the add-on, a new icon will appear in the Thunderbird toolbar. Simply click on the icon, and it will open the Dropbox Paper tab.

Will the Dropbox Paper Add-on Collect My Data?
Never.

Not yet rated
39 users

Arcus

Modern encryption in Thunderbird - powered by Rust, rage and WebAssembly

Rated 5 out of 5 stars (2)
18 users

Group Favorite Folders

An extension for Thunderbird 115+ that groups and sorts favorites folders in the compact view.

Rated 5 out of 5 stars (1)
348 users

Spellchecker Rumantsch Vallader

Spellchecker for Rumantsch Vallader

Not yet rated
6 users

Spellchecker Rumauntsch Puter

Spellchecker for Rumauntsch Puter

Not yet rated
3 users

Slack - Quick Access

Quick Access to Slack in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

Rated 5 out of 5 stars (2)
213 users

Open Google Chat

Adds an icon on the spaces toolbar to quickly open Google Chat.

Not affiliated with Google.

Rated 5 out of 5 stars (1)
386 users

Bard - Quick Access

Quick Access to Google Bard (new name Gemini) in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

Not yet rated
16 users

Telegram - Quick Access

Quick Access to Telegram Web in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

Rated 5 out of 5 stars (2)
165 users

Google Calendar - Quick Access

Quick Access to Google Calendar in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

Rated 5 out of 5 stars (1)
1,282 users

ThunderbirdBravoClick2Call

Make a call to the selected phone number. Call the public numbers shown on the site via the BRAVO UCC SOLUTION platform by clicking or highlighting them

Not yet rated
1 user

MyTickets

Extension to mails that have TicketID: XXXX in Subject
It will Check to see if you have a "MyFolders" folder under your INBOX.
If yes it will create two child folders:
- Open
- Closed
IT will sync All Open Folder every 5 minutes

Not yet rated
14 users