whenever i try to click my avatar thingy on YouTube it doesn't open the correct popup where i can find my channel it just shows a settings menu. and when i try to subscribe to someone it just says "your session has expired" and brings me to the creators YouTube page. it looks like im signed in, i can see my avatar, my subscriptions and even open my YouTube studio when navigating to my channel. so it seems like im signed in. i also briefly had the option to sign-in whilst being able to see my subscriptions and that brought me to the page i send a screenshot off. '''what ive tried:''' i have tied fixing Firefox(that thing that appears when trying to uninstall firefox), i have uninstalled and then reinstalled Firefox, i have tried both the nightly and beta builds of Firefox, i have tried running Firefox in safe mode and i have tried to run YouTube in a private window using a different YouTube account. all resulting in the same problem. i also tried using the new Microsoft edge and that seemed to work without problem. help would be greatly appreciated. 'ps sorry for my bad English sentence structure and spelling, English isn't my first language and im dyslexic :)''