Hi hadez,

Thank you for your question. Currently there are a few ways we can permanently remove browsed sites on an android device.

1. Open up Firefox on the Android and tap on Settings
2. Tap on Privacy
3. On this menu you will see a few options, to clear everything tap on "Clear Private Data"

Note: you can go a step further and select do not track. You can read more about this here: How do I use Do-not-track on Firefox for Android?

Are freakin kidding me? The so-called solution above does neither of the things the person is asking for! How did you get to be an admin? You need to delete your response because it's completely 100% wrong and misleading.

1. https://support.mozilla.org/en-US/questions/986796#answer-535445 answers "Need to permanently remove browsed sites" I believe
2. Finally "clear history automatically" is not planned. It could be done in an add-on (but I don't know of one that does it) or you could use private browsing or guest browsing both of which don't keep history.

I am locking this question because I think the above answers both those issues.