If you like Firefox but don't trust Mozilla anymore there are plenty of forks to choose from: Waterfox, Pale Moon, Basilisk, GNU IceCat.

Personally I build Firefox from source and maintain a set of patches largely based on these: https://aur.archlinux.org/packages/firefox-esr-privacy/

I think about doing this as well but heard a lot of bad things about the firefox build process. How long does it take to build for you?

They are probably true. Using an i5 @4.3GHz it takes 2.5/3 hours to build. To test changes you must set up a compiler cache or it's going to take forever.

That seems a little slow. I compile nightly for my own use and it takes around 20 minutes on a haswell i5, using tmpfs for the build directory.

20 minutes sound like a dream, I don't know why it's so slow for me. Maybe because I'm using Nix to build it and the source is on an SSD. I can't use tmpfs because it doesn't fit in memory without adding swap.

Firefox 57's sweeping changes ruined most of my vim-like ui customizations (vimperator, vimfx). For 2 months I've switched to qutebrowser and palemoon as a backup and dont miss firefox at all.

If you're looking for a browser with first-class vim compatibility qutebrowser is outstanding.

I've also found palemoon to be a perfectly boring/stable/functional variant of firefox without all the drastic/breaking changes (vim plugins work quite well also)

If you were a vimperator aficionado you might want to have a look at uzbl.

Pale moon is not as good as waterfox, at least for me.

Links2. http://links.twibright.com

No, it doesn't show PDFs or videos, but does that belong in the browser anyway?

I wonder if Links2 or lynx can be ported as Chrome add-ons.

Yup, https://chrome.google.com/extensions/detail/bjekedpipaedojkb...