Just turned pc on this am & only thing i did before running firefox (the new update to 8 installed yesterday but this is 1st time using it) was an adobe flash update. Can't start in safe mode either. Tried restoring to firefox 7 but it won't load without crashing either. Am running windows 7 professional. I am checking for spyware etc, quick scan microsoft professional shows no spyware, doing a full scan, have firefox 5.0 will try installing that. Firefox 5 crashes too........ '''OK got firefox 5.0 to load in safe mode & disabled all addons. Seems to be working, Dare i upgrade??'''