I/GeckoSoftwareLayerClient( 2305): Adjusting viewport W/dalvikvm( 2305): threadid=10: thread exiting with uncaught exception (group=0x40015560) E/AndroidRuntime( 2305): FATAL EXCEPTION: GeckoLooper Thread E/AndroidRuntime( 2305): java.lang.RuntimeException: Buffer not large enough for pixels E/AndroidRuntime( 2305): at android.graphics.Bitmap.copyPixelsFromBuffer(Bitmap.java:295) E/AndroidRuntime( 2305): at org.mozilla.gecko.gfx.GeckoSoftwareLayerClient.getBitmap(GeckoSoftwareLayerClient.java:208) E/AndroidRuntime( 2305): at org.mozilla.gecko.GeckoApp$SessionSnapshotRunnable.run(GeckoApp.java:614) E/AndroidRuntime( 2305): at android.os.Handler.handleCallback(Handler.java:587) E/AndroidRuntime( 2305): at android.os.Handler.dispatchMessage(Handler.java:92) E/AndroidRuntime( 2305): at android.os.Looper.loop(Looper.java:130) E/AndroidRuntime( 2305): at org.mozilla.gecko.GeckoAppShell$LooperThread.run(GeckoAppShell.java:153) W/ActivityManager( 110): Force finishing activity org.mozilla.fennec/.App STR: 1. www.timecube.com 2. Rotate device. -- Samsung Nexus S (Android 2.3.6) 20111216052315 http://hg.mozilla.org/mozilla-central/rev/80ac06ad280d

Looks like this is due to the thumbnail saving code not knowing about the new dynamically sized tiles.

Reproduced on samsung galaxy S2 on latest nightly (12/19) https://crash-stats.mozilla.com/report/index/bp-35008479-0bb1-40db-bebd-ace4c2111219

this is probably invalid now since we are saving out thumbnails differently. Please reopen if it still happens.