I can't play videos or audio on Firefox for Android 5.0 (Lollipop)
If you're using Firefox on your Nexus 9, you might have experienced a temporary issue with playing video and audio files. We'll show you how to resolve them.
Some videos won't play in background
Some popular video websites have changed their settings on the server side so that videos will no longer play in the background.
How to send a crash report on Firefox for Android
How to send a detailed crash report.