Ditto. But with 15% market share and growing such issues will hopefully become a thing of the past when more websites start encoding specifically for Firefox.
Or at least start coding to W3C standard instead of to IE.
I was shopping at Sears online yesterday and found the section where I wanted my item only worked in IE. Now I do have the IE Tab extension so I could get in and look at it (exercise equipment ain't cheap!). But I didn't buy, I just used "Contact Us" to say that since their site is IE only, and I use Firefox, that I won't be buying from there.