Add-ons
Miscellaneous
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Filter Uploader for Adblock Plus (unofficial)
Requires Restart
DOES NOT BLOCK ADS! Don't install this add-on if you don't know what 'uploading' means!
This add-on Uploads the filters from your Adblock Plus installation to a FTP, HTTP, HTTPS server...
Quicker Filer
Requires Restart
Quicker Filer helps you file your messages into folders using keyboard shortcuts and quick search method. Navigate through folders by typing the start of a folder name and the Quicker Filer dialog will show you all folders that matches as you type.
Attachment Saver
Saves all attachments from multiple selected emails as a single zip file.
It provides an extra option in your context menu when selecting emails.
Mail Redirect
Requires Restart
Allow to redirect (a.k.a. "remail") mail messages to other recipients.
MinimizeToTray
Requires Restart
Minimizes Mozilla windows into the system tray. Also includes a right clickable tray icon menu to further load only the windows you want visible...
ProfileSwitcher
Requires Restart
It adds some options to launch easily other profiles and the Profile Manager.
MinimizeToTray revived
Toolbar Buttons
Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.
Tiny JavaScript Debugger
TinyJSD is a JavaScript debugger for privileged code running Mozilla products like Firefox, Thunderbird, SeaMonkey. It serves to debug the application as well as extensions written in JavaScript.
Scriptable Notifications
Allows you to define an external script (bash, batch, python, ...) which is called so you can manage mail notifications / alerts the way you want.
Snap/Flatpak versions of Thunderbird not supported.
Open Google Tasks
Muttator
BlunderDelay
Requires Restart
Thunderbird Extension: AutoSend Unsent Messages. Flushes entire outbox at regular intervals.
Hide Menubar
Requires Restart
Supports to hide Menu Bar automatically, you can press the ALT key to show it temporarily.
Calendar Tweaks
Requires Restart
Allows several tweaks to the Thunderbird/Lightning calendar user interface including new selection styles and repeating event icons. Mimics the colors and styles found in MS Outlook.
Check for Updates in Help Menu
Requires Restart
Adds a 'Check for Updates' entry to the Help menu.
LaTeX It!
Requires Restart
This addons allows you to write LaTeX expressions in your emails such as $x^2$ or $$\sum_{x=0}\infty$$ and have them all replaced by a PNG image with the corresponding formula inside.
*Note: this addon is not compatible with Thunderbird 78+*
Keyfixer
Requires Restart
(Note: Version 0.5.34 has been updated to work with Firefox 34)
Keyfixer patches the key bindings for Mac OS X users of Firefox and Thunderbird to match the key bindings of Windows
To create your own collections, you must have a Mozilla Add-ons account.
