ThunderbirdThunderbird
Release Notes

v.17.0, released: November 20, 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

  • NEW
    A Menu Button is now shown to new users by default
  • NEW
    Tabs are now drawn in the title bar on Windows
  • FIXED
    An issue causing spell-checking only parts of words in Thunderbird 16 is now fixed (790475)
  • FIXED
    An issue causing Thunderbird 16 to repeatedly download emails is now fixed (806760)
  • FIXED
    RSS feeds can now be viewed in the Wide View Layout (531397)
  • FIXED
    Various fixes and performance improvements
  • FIXED
    Various security fixes
  • CHANGED
    Mac OS X 10.5 is no longer supported