I swapped back to Firefox a couple of months ago. I am of the opinion that all browsers ought use the same engine, but Google shouldn't be given more of a chokehole on the web than they already have. It's troubling enough as it is.
That said, Firefox not supporting basic things like selectively turning off JS for websites, or vertical tabs without using wonky and inelegant third party extensions (and ui-chrome editing!) is honestly ridiculous.