I finally switched to Chrome from Firefox just last week. I just couldn't take the hang ups anymore. Here I am with an absurdly beefy game development workstation and it's hitching switching tabs and scrolling pages. Absolutely unacceptable. Moving everything over to Chrome took about 2 minutes since the importer pretty much grabbed everything and it wasn't hard to get the extensions I needed. The only thing that annoys me is that clicking on links/bookmarks while on a pinned tab opens the link/bookmark on the pinned tab and not in a new tab like Firefox does. Makes pinned tabs less permanent and I have to remember to middle click these things but it's a minor inconvenience compared to just how slow and unresponsive Firefox had gotten.
I had the opposite experience. I used Firefox the last 48 hours on Mac and it works really well. I can't find a reason to not use it, but also no reason to use it. Commodity products. I think this is the choice most users face. Add a lot of marketing dollars and defaults on Android and you can explain Chrome's growth curve.
