I'm not quite sure why this is recommended on Firefox for Android when it doesn't seem to work. Maybe it's better on desktop. Anyways, i won't ever use this again.
This is a known issue, and the problem lies with Firefox for Android rather than LeechBlock. See discussion here: https://github.com/proginosko/LeechBlockNG/issues/419
The issue should be fixed in a future version of Firefox for Android.
