Firefox unstable

I cannot stream china open tennis via tennis tv - login problems, crashing problems. Unresponsive to login details Sometimes I can log in but then cannot open specific matches Other times the screen just goes blank There is an account login icon in lower left hand corner of the screen, but if I try to refresh the screen the icon changes its nature and does not respond, then I cannot log in or out It is random and unreliable when I am trying to stream the tennis I have never had this problem with this website before, and I have been a subscriber for 5 years The first two photos are how the login icon should look. The third shows what is happening to the login icon The fourth photo is the blank screen that I sometimes get and cannot move away from - the screen is stuck I really dont want to have to use Safari and definitely not Chrome Sherrill Carta shcarta@gmailcom