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Safe Links Cleaner

Clean up the display of links rewritten by Microsoft ATP Safe Links when reading and composing mail, so the original links can easily be viewed and copied, while retaining the rewritten addresses as the actual target of all links.

Not yet rated
15 users
Added Jan. 25, 2021

Autofile - fast e-mail to folder filing

Read an e-mail, hit Autofile button and it is filed / moved to the right mail folder based on the sender's address. No drag/drop needed.

Autofile can discover folders to store each author mail. Will save you lots of time like defunct filemail.

Rated 2 out of 5 stars (1)
35 users
Added Jan. 14, 2021

Attachment Image Viewer/Slideshow

Viewing images in attachments as full size or thumbnail.

* Show slideshow of attached images
* Zoom image
* Drag zoomed image to choose the displayed region
* Rotate image
* Flip image
* Download dialog: shows a thumbnail of the image

Rated 5 out of 5 stars (2)
221 users
Added Jan. 13, 2021

Toggle Summary

Adds a Toggle Summary button

Not yet rated
11 users
Added Dec. 28, 2020

Toggle Inline

Adds a Toggle Inline button

Rated 5 out of 5 stars (1)
13 users
Added Dec. 28, 2020

Toggle HTML

Adds a Toggle HTML button

Not yet rated
59 users
Added Dec. 28, 2020

Select Prev on Delete

Selection of the previous message (instead of next message - default behavior) when deleting (only for Thunderbird 78 or above).

Not yet rated
11 users
Added Dec. 27, 2020

AttachmentCount

Adds a column to the Thunderbird message list to always display the true attachment count. An icon is shown for single attachments or all attachments deleted/detached. Tooltip preview of single attachment content and summary for multiple attachments.

Rated 5 out of 5 stars (1)
161 users
Added Dec. 14, 2020

Smileyfixer

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

Not yet rated
196 users
Added Nov. 26, 2020

Darko

Simple dark mode (theme) for your Thunderbird messages.

FastAddons.com/#darko

Rated 5 out of 5 stars (9)
1,329 users
Added Nov. 10, 2020

Seams

Seams provides some integration with Patchwork, the patch tracking system. It makes the patch state visible directly from Thunderbird. It also displays useful links to a Patchwork instance or to mail archives, and commands to apply the patch locally.

Not yet rated
8 users
Added Nov. 7, 2020

UrgentMail

Raise X11 urgent flag if new mail is received.

This addon listens for incoming mails and causes the Thunderbird window to draw attention.

Rated 5 out of 5 stars (1)
93 users
Added Oct. 14, 2020

EML-Editor

Addons to edit EML files and save your emails as EML file with their attachements.

Available on Github with MIT Licence :
https://github.com/pgpgeek/thunderbird-addon-eml-editor

Not yet rated
105 users
Added Oct. 14, 2020

Web Translate

The best Translator for Thunderbird 78!
Available also for Firefox!

Supported translators:
Google Translate
Microsoft Translator
DeepL
Yandex
Яндекс Переводчик
Google 翻译
百度翻译

Rated 5 out of 5 stars (11)
7,124 users
Added Oct. 11, 2020

Safelink removal

Replace URLs which have been rewritten by Office 365 Advanced Threat Protection with the original URL.

Not yet rated
73 users
Added Oct. 6, 2020

Spam Scores

Displays spam scores according to mail headers. Supports spam/ham score headers of Rspamd, SpamAssassin and MailScanner. The add-on adds a column with the overall spam score to the mail list view and shows details of any matched spam/ham rule.

Rated 5 out of 5 stars (7)
743 users
Added Sept. 29, 2020

Deselect on Delete TB78

Disables selection of the next message when deleting.

A quick port of squib's "Deselect on Delete" for thundebird 78.

Rated 4 out of 5 stars (4)
232 users
Added Sept. 17, 2020

Transfer Immunity

Transfer Immunity is a fast and secure add-on and SaaS service for sharing and transferring files. This high-fidelity, SaaS-based platform allows users to send large files to different destinations as attachments with emails.

Not yet rated
40 users
Added Sept. 16, 2020

QNote

Add notes to your e-mails. Drop-in replacement for XNote++ with more features.

Rated 5 out of 5 stars (32)
1,842 users
Added Sept. 15, 2020

ScrollAnywhere

Scroll without touching the scroll-bar!
Press Middle (Right / Left) mouse button anywhere on the page to scroll just like with scrollbar.

Features also:
- "grab and drag" scrolling
- customizable scrollbars!
- the Momentum auto-scroll

Rated 5 out of 5 stars (1)
97 users
Added Sept. 12, 2020