mozilla firefox 0.9.2 was released a bit ago - renaming the 0.9.1 ebuild and digesting, as well as emerging, works fine. Reproducible: Always Steps to Reproduce:
I believe the only change from 0.9.1 -> 0.9.2 was a Windows-specific bug fix. Notice they've only released Windows binaries: http://ftp.mozilla.org/pub/mozilla.org/firefox/releases/0.9.2/
They have also released the source code.
*** Bug 57525 has been marked as a duplicate of this bug. ***
Emerged it by changing ebuild name and redigesting, too. Works fine for me.
From http://www.mozilla.org/security/shell.html On July 7 a security vulnerability affecting browsers for the Windows operating system was reported to mozilla.org by Keith McCanless, and was subsequently posted to Full Disclosure, a public security mailing list. On the same day, the Mozilla security team confirmed the report of this security issue affecting the Mozilla Application Suite, Firefox, and Thunderbird and discussed and developed the fix at Bugzilla bug 250180. We have confirmed that the bug affects only users of Microsoft's Windows operating system. The issue does not affect Linux or Macintosh users. Updating this in Gentoo would be stupid.