Created attachment 626064 [details] logs Firefox 15.0a1 (2012-05-22) Device: Galaxy Nexus OS: Android 4.0.2 Steps to reproduce: 1. Open Fennec 2. Browse to youtube.com and tap on a video 3. Tap on video surface to activate the plug in 4. Zoom and tap on Full Screen button on YouTube player 5. Go to AwesomeBar Expected result: No ANR should occur after step 5. Actual result: Fennec is frozen after step 5. After a couple of seconds, several ANR errors occur (see attached logs).