Switch the signature on/off or choose a new one from your predefined set...
Allows for customization of the folder pane. Accounts can be rearranged and the startup folder can be chosen.
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!
A system tray extension for linux, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...
Toolbar-Buttons for Lightning; advances the feature to get rid of the tabbar.
Displays the contact photo/image/picture of the sender/recipient while reading or composing a message. Supports photos in a local folder and the 'Face' header for embedded photos. The add-on adds new generic photos and many styling possibilities.