Add-ons
Folders and Filters
Sort by:
RepSel: Reply to all selected mails
Reply to all selected messages with a single button press. E.g., compose a reply to all emails in a folder or those matching a search. Req. permissions: menues to add UI, messageRead to get sender, compose to add recipients, storage for settings.
X-Original-To Column
This addon adds a new column called X-Original-To in the message list which shows the original recipient address of the message (the contents of the X-Original-To header). This can be useful for systems with catch-all email addresses.
GTrash
Provides a button and keyboard shortcut (Shift + Alt + Delete by default) to move mail to its account's Trash folder, regardless of normal delete setting. It was developed to improve the experience of using GMail via IMAP.
CatchAll Bird
This extension improves the use of CatchAll-Addresses with Thunderbird.
It handles incoming messages addressed to all prefix@domain.tld for a fixed domain.
For each prefix the AddOn can create a new identity and folder.
Auto-Mark Folder Read
New messages can be automatically marked as read in common folders (e.g. spam, trash, drafts, templates).
For TB up to 121, please use the most recent v1.5.* add-on release.
For TB as of 122, just use the latest add-on version (1.6 or higher).
Real sender of italian PEC
Shows real sender of italian certified emails (PEC) into the table that lists emails.
Auto Mark As Read
Automatically mark incoming messages as read if they are in one of selected folders.
An attempt to revive & enhance 'Mark Junk Read' by Alex Cabal
thundersort
Sort incoming mails into account folders based on the local part (based on regex)
Thread in same folder
Runs after junk classification and filtering to make sure a newly-received message lands in the same folder as its parent in a thread.
Quick Filter By
A simple extension that sets the Quick Filter based on the selected message fields. You can filter by either selecting "Quick Filter By" in the message list context menu or simply by alt-clicking on the message's sender, recipient or subject text.
Pushover Notifier
Send a Pushover notification when a new email arrives.
Plugin requires a Pushover account.
This plugin is not affiliated with or endorsed by Pushover. It was created independently. Use at your own risk.
PrioMailbox
PrioMailbox helps you prioritize your Thunderbird inbox by automatically tagging and highlighting important emails. Trainable tags organize your inbox efficiently, saving time and reducing distractions, with a simple, user-friendly interface.
Copy Email Folder
This extension allows you to automatically copy email messages from one folder to another with all subfolders and perform a merge of the contents. It is a helpful tool for users who want to back up or sync folders but avoid duplicating emails.
Thunderbird Send [stage]
[Alpha Testing] Thunderbird send allows sending and receiving end to end encrypted files.
This add-on is undergoing testing and not yet available to the general public.
Mark Subfolders Read
Adds a context option to folders for marking all contents of the selected folder and all subfolders as read.
Deselector
SentAutoMove
Folder Pane Toggler
Adds a toggle button to the unified toolbar to show and hide the folder pane. This is very useful when using different tabs with different folders open, and on smaller screens, or where as much space is needed as possible. This should be part of TB
To create your own collections, you must have a Mozilla Add-ons account.
