Fixing issue of Chrome opening instead of Firefox beta on JellyBean Devices.
I had an issue where I couldn't get firefox to open from the Subsonic app so flash would work. For a long time firefox opened but for some reason it stopped.
To fix:
Go to settings in your Android mobile device.
Go to applications
Scroll over to ALL
Find Chrome. Click on Chrome.
Clear Defaults.
Now when you attempt to open your first video, you should get a prompt that asks you which browser to use.
Hope this helps someone.