Add-ons
Cole Action
by Nick Liebmann
About this Collection
51 Add-ons in this Collection
MoreLayouts
by alta88
83 users
Adds additional Wide Thread View and Stacked View to Thunderbird along with Reversed views. Plus configurable Fullscreen F11 and Message Pane F8 toggles. Also starring Vertical Tabs.
userChromeJS
by Jonathan Kamens
318 users
Load the contents of chrome/userChrome.js from the user's profile directory every time a window is opened. Also add a toolbar button which reloads userChrome.js in the current window.
Get Map for Thunderbird
by Rob Lemley
383 users
The "Get Map" button from the old address book is missing in Thunderbird 102 and 115, this extension puts it back. OpenStreetMap and Google Maps are both available. OpenStreetMap is configured by default and can be changed in the Add-ons Manager.
Markdown Here Revival
by Rob Lemley
1,545 users
A revival of the popular Markdown-Here addon for Thunderbird.
Markdown Here Revival is a Thunderbird extension that lets you write emails in Markdown and render them as HTML before sending.
RemindMe
by Armin Tamzarian
405 users
Moves email into Inbox/RemindMe folder, and moves it back into Inbox after chosen time.
Grammar and Spell Checker — LanguageTool
by LanguageTooler GmbH
71,152 users
Check your emails for spelling and grammar issues
Attachment Viewer: view in a tab, slideshow
by opto
4,758 users
View attachments in TB
Images, office files, mp3, mp4, text, js
Use Dropbox viewer for 175 file types (in v3)
* Docx, xlsx, pptx, pdf preview
* Slideshow of images
* Zoom/drag
* Rotate/flip image
* Download dialog with thumbnail of image
Expression (Power) Message Search - NG
by opto
2,582 users
* Fuzzy search: Bucher also finds Bücher
* By RegEx
* Visual search query builder
* Search window as a tab
* New search and filter criteria: reply-to, bcc, to-only, filename, xnote, date range, time, header, only ...
* to A but not to B + more
GCalTab
by Florent Tassy
1,758 users
GCalTab is a Thunderbird add-on that opens Google Calendar website in a Thunderbird tab. It features a beautiful dark mode thanks to the DarkReader algorithm.
ObsidianClipper
by Kevin N. Haw
425 users
ObsidianClipper is a Thunderbird extension to clip emails to the Obsidian notetaking application. Save an email to Obsidian seamlessly with one click. Customize the format of new note titles and note layout.
Old (classic) Icons
by DeltaBlast
2,725 users
This replaces the new monochrome icons with the old/classic colorful icons. Uses the code from Phoenity Icons and the graphics from older Thunderbird versions.
Clippings for Thunderbird
by AE Creations
1,816 users
Save frequently-entered text for pasting later.
ImportExportTools NG
by Christopher Leidigh
268,862 users
Adds tools to import/export messages and folders
EML, MBOX, HTML PDF , Plaintext Support and CSV support with indexes and file naming.
DeepL Selected Text
by Itagaki Fumihiko
10,882 users
Unofficial DeepL translate extension for Thunderbird.
Just Report It
by Nicolas Provencher
853 users
Just Report It (https://justreport.it) is an email plugin which tackles spam the right way. Report emails straight to SpamCop, the Registrar, a custom email address or any combination in between!
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