Add-ons
Up & Coming Extensions
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Hide Clear List Button
Requires Restart
Hide the "Clear List" Button in the Download Manager.
Rethread
This addon adds an entry in the right-click menu which re-threads selected messages together (groups selected messages into the same thread)". This is done by _modifying_ messages; the author of the addon declines any responsibility for data loss.
techblocker
Disable DragAndDrop (Thunderbird)
Requires Restart
A Thunderbird extension which disables drag and drop in the folder pane.
This extension prevents unintended folder movement.
Restart Thunderbird
Black Screen
Use black screen test to detect dead pixels, stuck pixels, and other display defects.
Gnome Integration
Requires Restart
Provides better integration with Gnome using standard notifications and other features
AutoConfiguration Hook
Requires Restart
Provides ability to create E-mail accounts for specific ISP via the account creation wizard.
Titlebar Tabs Cleaner
Requires Restart
A toolbar button to remove the tabs from the Windows titlebar back to their original place. Provides an easy way to undo the changes introduced by Thunderbird 17 or switch between the two modes effortlessly.
Addons Quick Search
Requires Restart
Type first letters of add-on name to find them in the list or press Ctrl+↑/↓ to switch between add-ons categories.
Additionally remember and restore last selected item in each list.
Nextcloud for Filelink
Requires Restart
"Nextcloud for Filelink" is an Open Source Thunderbird extension which makes it easy to send large attachments with Thunderbird by uploading them first to a Nextcloud server and by then inserting the link into the body of your email.
Linux Growl
Requires Restart
Sends linux notifications using notify-send when a new email or a RSS feed is received.
Required:
sudo apt-get install notify-osd
QuickFileMail
Requires Restart
QuickFileMail is a Thunderbird Add-On that helps to quickly file messages in the right folder.
mozCleaner
Cleans your Firefox, Thunderbird, SeaMonkey, Fennec (unstable), Instantbird and BlueGriffon.
Custom Sender Address and Reply
Requires Restart
Select sender mail address based on the recipient and reply with the same address
Google Messages Tab
Markdown Here
Check Domain
Requires Restart
This extension is to display the warning dialog when you send mail for multiple domains.
userChromeJS
Load the contents of chrome/userChrome.js from the user's profile directory every time a window is opened. Also add a toolbar button which reloads userChrome.js in the current window.
To create your own collections, you must have a Mozilla Add-ons account.
