Thunderbird 1.0.5 is a security and stability update that is part of our ongoing program to provide a safe Internet experience for our customers. We recommend that all users upgrade to this latest version.

To avoid crashes or other problems, do not install a new version using the installer into the same folder as an older zipped installation.

Here's what's new in Thunderbird 1.0.5:

  • Several security fixes
  • Stability improvements
Fixed in Thunderbird 1.0.5
MFSA 2005-56 Code execution through shared function objects
MFSA 2005-55 XHTML node spoofing
MFSA 2005-52 Same origin violation: frame calling top.focus()
MFSA 2005-50 Possibly exploitable crash in InstallVersion.compareTo()
MFSA 2005-46 XBL scripts ran even when Javascript disabled
MFSA 2005-44 Privilege escalation via non-DOM property overrides
MFSA 2005-41 Privilege escalation via DOM property overrides
MFSA 2005-40 Missing Install object instance checks
MFSA 2005-33 Javascript "lambda" replace exposes memory contents

<>