Mozilla/5.0 (Android;Linux armv7l;rv:10.0a1)Gecko/20111103 Firefox/10.0a1 Fennec/10.0a1 Devices: Samsung Galaxy Tab 10.1 OS: Android 3.1 Steps to reproduce: 1. Open Fennec App 2. Tap on Menu button > Preferences 3. Connect to Sync with a valid Sync account 4. Tap on Pair a Device button 5. Close the "Pair a Device" window by tapping the Cancel button Expected result: After step 5, the VKb and "Pair a Device" window are closed in the same time. Actual result: After step 5, the opened window at step 4 is closed, but the VKb still remains on the screen.