I have a strange problem, I can watch videos on youtube as long as cookies are not accepted by my browser (latest version of firefox). But as soon as I try to sign in to use my youtube account youtube forces me to enable cookies and videos stop loading and I receive a message that says "an error has occurred, please try again later." I have seen advice on how to fix this floating around the web, but it's always a solution for Windows users so that obviously does not help. If anyone has any thoughts on this that would be much appreciated.