Firefox 3.6.7 fixes some security issues

Mozilla Firefox 3.6.7 Release Notes

What’s New in Firefox 3.6.7

Firefox 3.6.7 fixes the following issues found in previous
versions of Firefox 3.6:

• Fixed several security
  issues.
• Fixed several stability issues.

Please see the
complete
list of changes
in this version. You may also be interested in the
Firefox
3.6.6 release notes for a list of changes in the previous version.