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Autocopy 78+

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

Rated 4 out of 5 stars (5)
203 users

Audio Preview

Adds a preview for audio files (wav, ..) to the message view, so it can be played directly.

Not yet rated
81 users

Deselector

Adds a Deselect button to close messages.

Not yet rated
3 users

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 (3)
250 users

Empty Folder

Adds a keyboard action (Ctrl+Del) and a folder context menu to delete all messages in a folder. Has a confirmation dialog to prevent accidental deletions

Rated 5 out of 5 stars (1)
86 users

TabControl

Automatically close old tabs when opening new mails.

Rated 5 out of 5 stars (3)
249 users

NTFNTF

NTFNTF: Notify on This Folder Not That Folder. Choose to enable or disable notifications on a per-folder basis.

Rated 3 out of 5 stars (4)
113 users

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 4 out of 5 stars (4)
566 users

YouTube RSS feed redesign

Adds YouTube thumbnails to RSS feed entries

Rated 5 out of 5 stars (1)
61 users

GIMPS Opener

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

Rated 5 out of 5 stars (1)
5 users

Darko

Simple dark mode (theme) for your Thunderbird messages.

FastAddons.com/#darko

Rated 5 out of 5 stars (31)
4,101 users

InfoCodex DocSummarizer

Intelligent document and mail summarization tool based on the artificial intelligence of InfoCodex. Create better summaries chapter-by-chapter and tag them in your preferred language.

Rated 1 out of 5 stars (1)
12 users

RemindMe

Moves email into Inbox/RemindMe folder, and moves it back into Inbox after chosen time.

Rated 5 out of 5 stars (4)
316 users

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 (18)
478 users

ThunderSuite - Customize your Quick Access Sidebar

This extension allows user editing of the spaces sidebar.
Create custom spaces from the extension options, to turn the new toolbar introduced with Supernova into your personal quick access toolbox.

Rated 5 out of 5 stars (7)
273 users

Change Link Appearance

Changes the appearance of links when displaying a message

Not yet rated
84 users

OpenFolder

This add-on makes it easy to open folders on a file server.

In order to use the add-on, you need to install two things: the add-on and the linked app.
You can download the linked app from the following website.

https://openfolder.net/

Rated 3 out of 5 stars (2)
170 users

CollectAddresses

Collect all sender/recipient/... addresses and store in an addressbook

Rated 4 out of 5 stars (1)
120 users

ObsidianClipper

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.

Rated 5 out of 5 stars (5)
219 users

Mark Read on Tab Open

Mark messages as read when you open them in tabs.

Not yet rated
23 users