Message and News Reading


PGP Universal

Fixes encrypted e-mail attachment names from PGP Universal servers

Not yet rated
2 users
Added Sept. 22, 2022

GIMPS Opener

Open Great Internet Mersenne Prime Search (GIMPS) 2ᴾ-1 exponent numbers.

Rated 5 out of 5 stars (1)
3 users
Added July 27, 2022

Bug Opener

Open GitHub, GitLab, Bitbucket, Bugzilla and Jira bug/issue numbers.

Rated 5 out of 5 stars (1)
10 users
Added July 27, 2022

Link Creator

Open selected URIs, URLs, email addresses, telephone numbers and links.

Rated 5 out of 5 stars (1)
26 users
Added July 27, 2022

Archive 3 Month

Archive messages that are older than 3 months in inbox and sent folder

Not yet rated
8 users
Added July 18, 2022

Joplin Export

Export your emails from Thunderbird to Joplin. To use the add-on, a running Joplin application is required (

Please note that this is not an official product of the Joplin team, but rather developed by a private person.

Rated 5 out of 5 stars (6)
140 users
Added April 7, 2022

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
6 users
Added April 4, 2022


Send SMS via sms77

Not yet rated
24 users
Added March 22, 2022

Autocopy 78+

Automatically copy any text in an email when the text is selected.

Rated 5 out of 5 stars (4)
118 users
Added Feb. 25, 2022

Safelinks Offr

If Advanced security for Microsoft 365 subscribers is turned on, many links are changed to be in the form of instead of the original link.

This add-on undos that process.

Not yet rated
18 users
Added Dec. 29, 2021


Link hints for messages

This addon adds a keybinding (ctrl+shift+E) for displaying hints next to each link in an email message. Enter the hint text into the box at the bottom of the message to open that link in the system's default web browser.

Rated 5 out of 5 stars (1)
16 users
Added Dec. 15, 2021

Render Markdown Messages

This extension renders markdown-formatted messages as rich text. It preserves the fonts and formatting of plain text messages but adds support for markdown features like lists, code blocks, etc.

Not yet rated
85 users
Added Dec. 11, 2021


Automatically close old tabs when opening new mails.

Rated 5 out of 5 stars (1)
64 users
Added Oct. 16, 2021

Filter Manager

Adds a Filters Button, opens Filter Manager

Rated 5 out of 5 stars (3)
683 users
Added Oct. 11, 2021


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.

Rated 5 out of 5 stars (4)
983 users
Added Sept. 30, 2021

Bookmarks: eMails and XNotes - Quick 'Jump To'

Bookmark Toolbar and Menu for easy switching to emails and XNotes.

While you can already 'star' or 'tag' emails, they are still hidden in their (deeply nested?) folder and are not in direct daily view.

Bookmark them!

Rated 5 out of 5 stars (2)
122 users
Added Sept. 20, 2021

HERA - Hotel Email Reservation Assistant

HERA helps hotels to semi or fully automatically respond to emails by checking rates in your PMS / CRS

Not yet rated
2 users
Added June 29, 2021


Eine Thunderbird-Erweiterung, welches Binnen-Is und Ähnliches von Webseiten entfernt. Es basiert auf der bekannten Firefox Erweiterung Binnen-I be gone.

Rated 5 out of 5 stars (1)
83 users
Added May 23, 2021

Link in Tab

Link in Tab allows you to:
- Left click => open link in new tab
- Left double-click => open link in browser
- Middle click => open link in browser and close current tab

Rated 5 out of 5 stars (1)
240 users
Added May 2, 2021

Expression Search - NG

Powerful message searching:

* Move the search box to save screen.
* Visual search query builder

* Type "f:fred fn:Vortrag" for messages from Fred, attachment name contains 'Vortrag'
* Type "t:(oo -pp)" for messages to oo, but not pp.

Rated 4 out of 5 stars (26)
1,939 users
Added April 12, 2021