I agree with you. No one else has stated that Firefox or seamonkey was crashing for no apparent reason. As stated earlier, it could depend on the hardware. I have installed ArcaOS multiple times on my laptop, and every time after, Firefox would start crashing for no apparent reason. I was having to go to windows more often for internet. It has only been two days, but so far no crashes. I will continue to see what happens. I need to see what happens in the next weeks. I would say this is a tip for anyone that might be having the same problem to try.