I am personally using Chrome and I can tell you without a doubt that Firefox is a lot better than Chrome. It's faster, more customization options, and it has every extension that Chrome doesn't have. I personally moved over from Firefox to Chrome once an extension for font anti-analising with Firefox made my whole…

My main browser would be Firefox. It has much more features and I'm accustomed to the way my bookmarks are set up along with the tabs (I have over 50+ tabs that are separated by groups) + grouping system.

Firefox gets extremely sluggish after a while on Mac. Same goes for Chrome but it can last longer, also if the page is going to crash it does not crash like Firefox. that's a big plus but Chrome needs your all Mac's ram.