See: https://crash-stats.mozilla.com/report/index/eab13b97-c561-42b8-ac78-7a8782130822 STR: 1. Firefox Android 24 beta on Nexus 7 2. Go to apprtc and approve media. 3. Re-enter apprtc with a new URL 4. Approve media. 5. Crash.
I was able to use the STR to produce a crash under the debugger, but the stack trace was that from bug 887693.