FIREFOX FOCUS

While Firefox Quantum is more cloud-centric than ever before, there's another version called Firefox Focus that's privacy focused. In fact, when run on iOS anyway, it's sandboxed just like with Firejail Tools under Linux. It has a built-in web bug blocker like Privacy Badger. And it deletes all of the site data like Bleach Bit. So basically it does exactly what I was trying to accomplish with PELinux.

PROJECT ABANDONED

I bought an iPad Pro so have lost interest in a Pi 3 tablet. Touch support actually got worse since 17.04 (I know, it's hard to believe worse is even possible) but if you're still using this with a Waveshare 10.1" IPS (the best Pi screen at any price) I'd still recommend Beta6A. Just do an apt upgrade and apt update after first boot and you'll have what I was going to put in 7A. If you want to go 17.10 I'd recommend you edit /etc/apt/sources.list after that and change all instances of the word "zesty" to "artful" then apt update and apt-get dist-upgrade, rather than using Beta6B (17.10 was still in beta when I made it.)