Iphone 13 ver ios 15.6.1
Simply said I have installed enhancer for youtube from firefox extention, for 1080p or better quality . Nothing change the extention is not loaded and browser default to 360p . I could understand that the ublock does not work because the build in blocker works fine . I have tried about 10 extention with sucess rate of 0/10
later try try to change settting of any extention and youtube enhancer in particular , setting page never load back after closing down.