@ dropa thank you. The old Firefox and chrome run OK on 4 GB "You can create a separate install of Firefox on different folder and profile " On the same user account?

They will launch separate version of Firefox and my understand they should conflict but someone that knows more about multiple same accounts might be able to tell if I said was incorrect or parts work or doesn't work. https://support.mozilla.org/si/questions/939994 https://support.mozilla.org/en-US/questions/1329510 https://support.mozilla.org/en-US/questions/1170758 https://support.mozilla.org/en-US/questions/1279570 https://support.mozilla.org/en-US/questions/1230040 Their old but you can read up about this.