One option I've been meaning to look, but haven't had a reason to because of LastPass is Encryptr [https://encryptr.org/], but now I might need to. They have Android and Linux support, but not browser plugin I think. Also, it comes from the same people as SpiderOak...

Encryptr is interesting and looks very nice. Includes source: https://github.com/devgeeks/Encryptr

But it doesn't appear to have anything like Lasspass's autofill on android that supports the fingerprint reader.

So you'll be using the clipboard to copy and paste passwords on Android, which is (I believe) much less secure.

Roboform works everywhere: http://roboform.com