hello, could you provide your latest few submitted crash reports? please enter about:crashes into the location bar, copy the latest few report ids from there starting with bp- & paste them here into a forum reply. this will give us a better understanding what may be triggering those crashes.

hi thanks bp-49255176-cb05-4951-99a9-7d7100180221 2018-02-21 1:12 PM bp-755643a3-2fe0-4726-b4be-f09511180221 2018-02-20 7:00 PM bp-48bca160-1248-43ea-a2eb-df7251180220 2018-02-20 1:35 PM

thanks, do you have tweaked the page file settings on your system by any chance? https://lifehacker.com/5426041/understanding-the-windows-pagefile-and-why-you-shouldnt-disable-it

Philipp you are a genius!!! Yes (she says with head bowed in shame) I had messed around with that - I just went back now and reset it so it goes back to defaults--I think it will work! Many many thanks!

great - i hope your firefox will be more reliable now :))