I just got an upgrade for Firefox yesterday, and I think it is running faster now. I haven't had many problems with crashing. I still use IE for at least one site.
It's been slightly better the last few weeks. However, now there's like a 'shadow' browser open. If I close Firefox and then go to reopen, it tells me that it's still running. I have to 'end process' in task manager to get it to reopen.
