Add-ons
Folders and Filters
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Group Favorite Folders
An extension for Thunderbird 115+ that groups and sorts favorites folders in the compact view.
selectAll Button
This Add-on installs a button on the mail toolbar that will when clicked select all messages within the folder.
If This, Then! - IFTTT connector
*Trigger 'If This Then That' by message filters.
E.g.: On email with the file attachment xyz.log, send from sampledomain.com,
email body with text 'error 365', trigger action "error365" on IFTTT
IFTTT can push to web services, do home automation
GMail Labels
Shows GMail labels in each message's headers panel. When using Thunderbird with a Gmail account, it is not possible to guess which Gmail labels a message was applied (and in which folders it can be found). This extension provides this information
AutoMover
Move Folder (context-menu)
Adds the "Move to" menu entry to the folders panel context menu, allowing to move a Local folder (and its content) to another.
This feature is similar to the native one within message(s) context menu ("Move To"), but it applies to the folder tree.
RemindMe
Moves email into Inbox/RemindMe folder, and moves it back into Inbox after chosen time.
archive-by-time
With the filter function comes with thunderbird, all emails met rules will be moved to a specific folder. As time passed the folder would grew bigger and I wanted to put all emails into sub folders classified by year.
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
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.
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.
thundersort
Sort incoming mails into account folders based on the local part (based on regex)
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
Archive 3 Month
Archive messages that are older than 3 months in inbox and sent folder
Real sender of italian PEC
Shows real sender of italian certified emails (PEC) into the table that lists emails.
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).
Send then Archive
Automates the process of archiving a message that has been replied to.
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.
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.
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.
To create your own collections, you must have a Mozilla Add-ons account.
