Firefox for Android may cause HTC Desire with Android 2.2 to reboot with casual browsing
People who have installed Firefox for Android on HTC Desire by allowing non-market Apps may encounter reboot issues with casual browsing. This article describes a workaround for advanced users.
Install a recent firmware
Android 2.3 and above do not have the issue but, as it has not been made available to users, a workaround is to install another firmware that is Gingerbread like Cyanogenmod 7. For further details about the issue, please see bug 757920.