Firefox problem on netrunner 14.1 and 15

Sorry if I posted in the wrong forum. I’ll start again.
Can’t listen to streaming radio in Firefox. It plays for maybe 10 seconds then stops. On restarting it simply repeats the previously heard 10 seconds every time it is restarted. Same Firefox version in Mint 17.1 works without problem. I downloaded Chrome browser which works absolutely fine. To try to fix the issue I have uninstalled and reinstalled Firefox to no avail. Same problem. Anybody got any ideas please?

Since my original post I have installed Prometheus 15 too. Same problem. Right now I have to open Chrome to listen to the radio on both OS [ ]. Other than this I love both Frontier 14.1 and Prometheus 15.

Have you tried disabling the preload script from System Settings > Startup and Shutdown?