First, when i go to youtube, and sign in, it will show in some panels to sign in, even though im signed in in the top right of youtube, and youtube doesnt fully recognize that im signed in, and because of that, i cant add videos to playlists(because youtube thinks im not signed in). However other browsers dont have this problem and they work perfectly. I have tried with all the extras unninstalled (they were blocking ads and stuff) and it still happens. Second problem is not that impactful, but sometimes when i open a new tab my monitor turns black, with a big thrust of white in the center appearing and dispearing rapidly, and monitor only comes back from black when i click away, or by waiting a considerable amount of time. I have uninstalled and reinstalled firefox, and it didnt fix any of the issues.