path: firefox_148.0.2-1/testing/mozbase/mozdevice/mozdevice/adb.py
                    time.sleep(2)
            if not boot_completed:
                raise ADBTimeoutError("ADBDevice: pidof not found.")
        # Bug 1529960 observed pidof intermittently returning no results for a
        # running process on the 7.0 x86_64 emulator.