Disable tabs in Mozilla Thunderbird

Tabs disabled in Mozilla Thunderbird

If you want to save a little space, consider disabling the tab area. By default it's only used to show the current folder.

To disable tabs, open Edit > Preferences:

  1. Set "Open messages in:" to "A new message window"
  2. Click "Config Editor" button at the bottom, and double-click mail.tabs.autoHide, to set it to true

However, if you search or open Tools > Add-ons will be displayed in a tab regardless.

Default, with tabs

With tabs disabled

For more, see: