Hiya. So if I download an attached file on gmail using Firefox... it crashes. If I open up a new tab on Firefox... it crashes. It only started this week. I'm using 12.7.6 and I really don't want to go back to Chrome, so I hope you can help. The macbook completely freezes apart from the mouse pointer which moves, but cannot open a thing. Every time I have to turn the macbook off to restart it. I tried uninstalling and reinstalling the latest version. Best, Mike