Having switched to Firefox three months ago, the three things that I miss most are,

1. The integration with Google Translate, which I understand would be difficult for Firefox to replicate

2. The ability to right-click on an image to search by image, which is probably similarly difficult to add to Firefox. [Edit: Thanks, vatueil, I will give that a try.]

3. How Chrome is less picky about what text it identifies as a url. E.g. If you highlight wpc.ncep.noaa.gov/qpf/day1-2.shtml in Chrome and right-click, you can navigate to that address, but Firefox doesn't realize that it is a url.

However, I only miss these conveniences a couple times a month, so I can live without them.