In either FireFox 4.x or 6.x, FF freezes when ever I try to open a file or open a dialog box such as if you were wanting to upload a file, when opening the file search box to find file to upload and the dialog box appears FF freezes (sometimes the dialog box never appears, just freezes). I even wait for quite a while, then I open task manager it says FF not responding. FireFox 3.5 works just fine, but now I have certain applications such as gmail that keeps warning me that my browser is out dated. I have also tried deleting old profile and creating new one. Also un-installed FF and re-installed from scratch and removed all plugins too. Still freezes when I try to open any kind of dialog box such as: File >> Open File or when ever I try to upload a file and the dialog box needs to open, it freezes. I am running windows XP