I view movies and tv series on Amazon Prime and others every night . Suddenly I no longer can. On Prime I get a msg. saying I must update ff. It tells me the process and I have done it at least 6 times. When I go to 'about Firefox it tells me that I am already up to date, have version 115.18 esr. I am on a Dell Business computer, Vostro 470. Windows 7, service pak 1. Processor is i5-3450CPU @3.10GHz. RAM 400 GB , 4 processor cores. 64 bit. Prime disk466 GB 395 GB free. I'm a senior lady, not very computer literate. I have a ton of duplicate files but don't know which to remove. If I got help I could free up a lot more space. I watch everything on my computer monitor. I don't understand as the esr was supposed to allow us to continue. Please help as I am pretty homebound and this is about my only entertainment.