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Extension Manager Extended
Requires Restart
Use the Addon Manager to view the id, date installed, compatible application versions, and the folder of an extension or theme. Check http://extended.spanglerco.com for more information and http://firefox.spanglerco.com for more extensions...
DragToCompose
Requires Restart
Enables dragging a file to Thunderbird for composing a new message without opening composer window first.
Nightly Tester Tools Lite
Requires Restart
This is a cut down version of Nightly Tester Tools by Mossop, which is 77.6 KB. I've only included the "copy build id" and "build id in titlebar"...
SmartTemplate
Requires Restart
This Add-on provides the smart and simple templates and abilities to customize the quote header flexibly.
Templates can be inserted automatically at the new/repling/forwarding message. A different template can be used respectively per account.
Free/Busy
Requires Restart
Publish free/busy calendar file (*.ifb) via ftp or to a file. View other people's free/busy info in meeting organizer window. Integrate Thunderbird and Outlook calendars without Exchange server.
tasks & mails
Requires Restart
Tasks and emails management in a Thunderbird extension. tasks are stored in emails folder and it's possible to link an email to a task.
See all in one, emails and tasks (no more pain to synchronize a task manager).
Send Filter
Requires Restart
This add-on allows you run your message filters automatically on outgoing messages after sending. In other words, it's a outgoing filter for thunderbird and seamonkey.
Random Theme Switcher
BlunderDelay
Requires Restart
Thunderbird Extension: AutoSend Unsent Messages. Flushes entire outbox at regular intervals.
ThunderKeep
SmtpSelect
Requires Restart
A toolbar button providing easy access to choosing the default SMTP server in Thunderbird.
Bird Import
Requires Restart
The extension allows to import e-mail messages from The Bat! mail client into Thunderbird.
Auto Resize JPEG
Requires Restart
Resizer for inline and attachment images (only JPEG format).
For Windows only.
Extension List Dumper
Requires Restart
This extension adds a button ("Dump list") to the Add-ons window. When this button is pressed, a new window is opened with the list of installed extensions, themes or plugins...
Play drums!
Clean Subject
Requires Restart
"Clean Subject" cleans the subject from multiple occurrences of subject prefixes such as ("Re: Re-2: Re:") and postfixes that are inserted by other clients. Words like "[SPAM]" can be cleaned as well. These prefixes can be defined in the preferences.
Wepware - Capture and Share Live Content
Requires Restart
Grab live snapshots of anything on the internet, organize your collected content into folders and share with friends through SNS.
Unread Count
Requires Restart
Maintains a file in the profile root directory with counts for unread messages per account. Useful for display in generic status bar, e.g.: taffybar, xmobar, dzen2, etc
To create your own collections, you must have a Mozilla Add-ons account.
