Xfinity Stream buffering, due to memory leak?
I use Xfinity Stream quite a bit along with other streaming services. I don't have trouble with other services, but for some reason Xfinity Stream after running for around an hour or two begins to freeze (three dots mid-screen). At first it happens every 10 seconds or so, but it becomes more and more frequent. If I go back to the Recordings page at this point it will often state that I have no available recordings. I've checked my Task Manager when in this state and Firefox is reporting a thread that is using 1.4GB of memory used (when I first start the stream it is usually at around 400MB memory used).
I've tried switching from WiFi to a hardline, but that hasn't solved the problem. I also tried changing the quality setting from 'Auto' to 'Low', this may delay the hangs but at around an hour of playtime they still occur.
The only way I've been able to resolve this is to close Firefox and restart. Is there some setting I can change to prevent this memory leak?