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ResizeTbWidth

Resize Thunderbird window width.
Set window with three widths (1/1 (1920px), 1/2 (960px), 1/3 (640px)).

July 3rd 2021.

I love God.

Sungho.

Not yet rated
59 users

Proton Mail Toolbar Button

Adds a Proton Mail button to the toolbar. The button simply opens a new tab with the https://mail.proton.me webpage.

Rated 5 out of 5 stars (3)
518 users

Proton Calendar Toolbar Button

Adds a Proton Calendar button to the toolbar. The button simply opens a new tab with the https://calendar.proton.me webpage.

Rated 5 out of 5 stars (8)
692 users

Spellchecker Rumantsch Surmiran

Spellchecker for Rumantsch Surmiran

Not yet rated
16 users

Google Calendar Tab

Adds a button to open Google Calendar in a new Tab

Rated 4 out of 5 stars (17)
7,664 users

Toggle Message Pane

Adds a Preview Button, toggles the message preview

Rated 5 out of 5 stars (8)
501 users

thundersort

Sort incoming mails into account folders based on the local part (based on regex)

Rated 5 out of 5 stars (1)
227 users

Webbuttons - Skype Web

Adds a button in the toolbar for Skype Web. Icon source: https://www.flaticon.com/free-icon/skype_16167326

Not yet rated
6 users

Thunderbird Assist

[Closed Alpha Testing] Thunderbird assist provides a summary of new messages in your inbox.

This add-on is undergoing testing and not yet available to the general public.

Not yet rated
3 users

TileNote

Tile notes, I provide this web app. to Mozilla Thunderbird users.
This is a derivative of RainbowNote, 7 colorful week notes, with tile like shapes.

Not yet rated
44 users

Click Speed Tester

Test your click speed and practice different clicking techniques.

Not yet rated
3 users

archive-by-time

With the filter function comes with thunderbird, all emails met rules will be moved to a specific folder. As time passed the folder would grew bigger and I wanted to put all emails into sub folders classified by year.

Not yet rated
132 users

GrapeVine for Salesforce

Connects Thunderbird to Salesforce.com

- Archive Emails from Thunderbird email accounts into Salesforce, automatically
- Synchronise Salesforce Contacts and Leads into Thunderbird's address book
- Create Contacts/Leads in Salesforce from emails

Rated 5 out of 5 stars (1)
15 users

Strip inline images

Adds a button to the compose window to remove inline images from messages. The images are replaced with their filename in angled brackets.

This is helpful when replying to long message threads with lots of embedded images.

Rated 5 out of 5 stars (3)
138 users

Open Google Keep

Adds an icon on the spaces toolbar to quickly open Google Keep

Rated 5 out of 5 stars (1)
216 users

British-English Dictionary (GB)

A strict British-English spell checker dictionary for Firefox, Thunderbird and SeaMonkey. This dictionary only includes words conforming to the preferred standard of British-English spelling.

Rated 5 out of 5 stars (2)
22,948 users

vault56 protection

vault56 protection protects against potentially malicious attached files and links. Links are rewritten to pass through vault56 URL protection servers and checked for trackers and malicious activity.

Rated 5 out of 5 stars (2)
53 users

Spellchecker Rumantsch Sutsilvan

Spellchecker Rumantsch Sutsilvan

Not yet rated
3 users

External Editor Revived

Edit emails in external editors such as Vim, Neovim, Emacs, etc.

Rated 5 out of 5 stars (7)
334 users

Customoji

Adds easy custom emojis to Thunderbird.

NOTE: you need to add the emojis yourself in the extension settings

Not yet rated
30 users