Firefox starts to hang whenever I open Gmail Inbox.The strange thing is that Microsoft Internet Explorer is working comparatively better with Gmail.Whenever I Click on Inbox, the CPU usage shoots to 100 % and Memory usage is already higher than normal.
There is no straight way in which an end user like you or me can fix it. So the way out is not to use Gmail with Firefox for some time till either Firefox or Gmail changes their applications to run with each other well. Use Gmail in Microsoft Internet Explorer or Opera browser etc.
A very simple solution which solves the problem, the solution is to clear the browser cache by pressing Ctrl+Shift+Del.