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ThunderbirdThunderbird Beta
Release Notes

v.14.0b1, released: June 8, 2012

Check out what’s new and known issues for this version of Thunderbird below. As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla.

What’s New

Known Issues

  • Unresolved
    On Mac, there is a big black line around the tabs (bug 763394)
    Unresolved on 14 first beta Resolved in 14 second beta
  • Unresolved
    If you are unable to view content for your RSS feeds in the Wide View Layout, you may need to disable the Lightning Calendar add-on if you have it installed or switch to Classic View and restart Thunderbird. (see 531397)