Chrome is a resource hog. I don't want that on my phone, which barely lasts 4 hours idling in my pocket. Thanks but no thanks. On my Mac, Chrome with 20 open tabs is always using most of my memory and CPU.
I usually have more than 50 tabs open in Firefox and often go over 60 before having a tidy up. Firefox can survive that for a couple of weeks whereas Chrome would often crash in less than a day. (Flash would crash even more often.)
YMMV, but I switched back to Firefox a couple of months ago and no longer have Chrome installed....