Correspondingly, Mozilla Firefox.

Similar to Google Chrome/Chromium, and has many of the same features. Each of those two browsers will suit some people better than it suits others, e.g. I always have many many tabs open, and I find that having more than 10 tabs open in Chromium is hard to use (tabs get unreadably small) and eats all my memory, while Firefox is nicer on both of these aspects. (I'm sure other use-cases suit Chrome better.)

(On that note, Firefox has had a bit of a reputation as a slow memory hog compared to Chrome, but that's no longer true.)