I have a Mac running Snow Leopard 10.6.7, I am using Firefox 4.0.1 and I have installed for it the Firebug 1.7.3 extension.
Some time, while I am using the browser to work for my website, Firefox starts to hard load something that I don't know: if I go to the Activity Monitor panel I see that it is using almost all the CPU!
So I have to force quit the application:
- if I start a new session I have no problem;
- if I restore the previous session sometime it is all right but some other no (Firefox still use a lot of CPU) and so I must start a new session loosing all my opened tabs.
What is the problem? There is a way to solve this issue? If so, how can I do?
P.S.: I noted that sometime all this happen after I use the Mac Sleep function (caching problem?) but sometime it is completely random.