Unlike Brave, Vivaldi or Chrome, Firefox will consistently reload pages when switching between apps. Filling up forms is a nightmare! This issue exists at least for the last 9 years and hasn't been solved. I have plenty RAM and Cache can be increased 10 fold, I don't care. Use what is available, just stop reloading my forms! Even in Beta, Unload.on.low.memory and browser.sessionstore.restore_on_demand I had to add manually (they probably do nothing anyway) Best way I found is to use Firefox in a floating window (apparently there are plenty resources for that) while copy-pasting what I need. I honestly don't have any other complain about this work of art, but recently I installed Brave and Vivaldi and after some testing I will switch to one of them, I can't take it anymore.