Yep, I do all reviews in FF...as I think a number of reviewers do these days
The issue with the very small 'Enter' on that banner was just a heads up. Some reviewers will decline for it...no matter the size. But, as mentioned in the email...it was the blue on black that caused me to decline the site.
Firefox is a lot less forgiving of bad code (both html and css) than IE. Definitely worth the time to check sites in both browsers to be sure
Also, I agree with Lemmy in that using inline css creates a lot of excess code. I tend to use either external css or keep in the doc head...makes for much leaner pages