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
Displays the address books in a sidebar in Thunderbirds 3-pane-window and can be toggled with the F4 key or a toolbar button.
Visit my Contacts Sidebar site for recent versions and news.
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.
Displays icon for user agent of received mails.
Collections are groups of related add-ons that anyone can create and share.Explore Collections