I've been running Firefox 25.0.1 under Sandboxie and everything has been working just fine. However, I just upgraded to Firefox 27.0.1 and it will not run under SBIE, even though it is set as the default browser. When I open the Default sandbox, it shows that there are files and folder in there (8MB worth), but the browser won't open. Can anyone help? EDIT: Just reinstalled 25.0.1 and Sandboxie 4.06 works fine again. Is FF 27.0.1 incompatible with SBIE 4.06?