All I get is a blank home page, along with a spinning beach ball. I cannot open the preferences to try to clear the cache, and must force quit to get out of Firefox. I have tried clearing the cache from the Library, and trashed the preferences file. I uninstalled the application, and reinstalled a newly downloaded application. I have restarted the computer many times, and run the disk utility to repair permissions. Nothing has worked. I have not added or upgraded anything on my computer since Firefox was working just a few days ago. Safari works fine connecting to the web. I have read through most of the support documents at Firefox Help, but cannot find anything that addresses this specific problem of hanging immediately after launch.