Firefox 3.6 keeps freezing and becoming non responsive

[steplauna]

I am having Firefox 3.6 and it keeps freezing and becoming non responsive.
I have been forced to go back to IE7 with no problems. I would rather use
Firefox. Why is Firefox freezing and becoming non responsive ?

I have scanned my computer for all bugs and my computer is clean.I have even tried by disabling my add-ons for Firefox,upgrading to Firefox 3.6 Beta (revision 5) [3.6b5] downgrading to Firefox 3.5 and tried deleting my cookies and internet temp files and I have the same problem.