Please explain the problem in detail. What happens? What is/are the exact error message(s) ?

Thank you FreMcD. It started yesterday saying words on the page along the lines of `this browser is now full and some memery needs to be removed'. I cant remember the exact words. This morning the message didnt come up!? If and when they do again, I'll copy and paste them to you Fred. Im most gratful for your help. Best regards. Mike.

It's started again. This is what comes up.

"Firefox is running out of disk space. Visit `learn more’ to optimise your disc usage for better browsing experience" I visited `learn more' but it's too complicated! I'm an experienced computer user and have been for decades but the tachnical explanations given are to complex for me. Thank you FerdMcD.. Mike

What is the size of your hard drive and how much free memory is left?

Open the File Explorer and select This PC on the directory tree.

Also start removing unneeded files. Buy an external hard drive for such files you want to keep.