FF 46.0.1 will not run streaming video from any source for more than 3-6 minutes without freezing. I have this problem on six computers in two different states (FL and IN) using two different internet providers (brighthouse and Comcast). Four of the computers run windows 10 and the other two run windows 7. Two are laptops and four are desktops. No problems with streaming until FF upgraded. I forced to use Chrome when I want to watch streaming videos (chrome works just fine on all six computers). The computers range from brand new to 8 years old. Four have quad processors and two are duo, Ram is 5, 8,8,8,8,8, and 16 Gbytes. Looking for any suggestions as I much prefer FF.