HP released the most awaited patch for QTP 11 with Firefox support, now QTP support almost latest version of Firefox till 8.0
But since there is a release for Firefox 9.0 happened, HP will still wait to release one more patch for Firefox 9 support, since Firefox will soon release 10 to 12 in next few months
Here is the QTP patch QTPWEB_00090.
You can download the same from ExecuteAutomation web site itself from
here
Thanks,
Karthik KK