[tempest_]

I find them to be close enough to imperceptible for just normal html and css etc.

The stumbling block for me as FireFox user is I am increasingly bumping into web apps that preform poorly in FF but are fine in Chrome for one reason or another. One instance I bump into a lot is ElasticSearches Kibana runs like trash in FF for some reason.

[StavrosK]

It sounds like the old "nobody uses Firefox because nobody tests on Firefox because nobody uses Firefox" vicious cycle, unfortunately.