I will not leave Firefox as long as I can keep working with it.
I don't find any substantial difference when I compare it with Chrome, so for me is just a choice based on the Company behinds the product.
Mozilla values and mine are aligned and I would like people to think more about the companies and less about the product. At the end that's what matter. What kind of Internet are you willing to see in 10 years? It can be very different depending on your choices.