A bird needs to eat to be strong and fly ... This is what i use to be more productive through Thunderbird 3. ;)
Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.
Allows bidirectional access to Google Calendar
This extension is for those TB3 users who want the multiple-columns view that TB2 allowed
The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.
See new mail at a glance after automatic filtering - supports quickFilters addon!
Manage your tasks from Thunderbird, even while offline.
Powerful message searching through expressions. Type "from:fred to:tom" to see all messages from Fred to Tom in the current view. Support 'regular expressions' and 'click to search'.
Simply add your signature manually (right mouse click) to your emails
Add arrow buttons for rotating among folder views, and switch to "All Folders" view when hovering over the folder pane during drag & drop.
Integrate QR codes for calendar events into tooltips for easy transfer to mobile devices.
MailHops maps the route an email took to get to you. Displaying the senders location in the mail headers box. Click on the sender location to view a map of the mail route.
Shows an indicator so you can tell if an email was addressed only to you (»), a group (›), or a mailing list.
This add-on provides a few new ways to keep Thunderbird clean.
FavLoc allows you to set folders as "favorite locations" to which you can easily download. FavLoc menus will appear on the File menu (for saving pages), the context menu (for saving images and links), and on the download...