Security researcher Muneaki Nishimura reported that Firefox
for Android would write potentially sensitive data to the Android
logcat
that was encoded as part of logged URL strings. On Android
4.0 or earlier systems, logcat
data is available to any application
having READ_LOGS
permission, leading to potential privacy
violations.
This does not affect non-Android versions of Firefox and is mitigated in versions of Android higher than 4.0.