I have recently installed Firefox 12 and the problem that I am facing with the same is that it is starting up slow and loading the web pages slow as well. I was not having any such issues before with the previous version of the Firefox that I was using. When I am opening Firefox the system starts running slow as well. I am not able t make out if this is an issue with the Firefox or my system. The system runs fine when I am opening other application, this issue seems to be somewhere with Firefox. Is there anyone else who has faced the same and has an idea about this issue and can suggest me some workaround for fixing it?