When I try open browser I get a Message saying C:\Program Files\Mozilla Firefox\firefox.exe can not be found. Tryed uninstalling and installing again.

When I open browser i get a message saying " Windows cannot find 'C:\Program Files\Mozilla Firefox\firefox.exe' Make sure you typed the name correctly and then try again. to search for a file click the start button and then search". I have tried uninstalling and then reinstalling it but it hasnt worked. == This happened == Just once or twice == was viewing a website and mozilla crashed and hasnt worked since == == User Agent == Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; MDDC; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)