That site puts it at 7.5% if you just look at desktops- and, weirdly enough, 9.5% if you look at last month instead of this month (which is more in line with previous months). It has been trending upwards as well over the last few months.
Eh, you've got to be an absolutely awful developer if you can't have a website render properly in a browser that follows 99.5% of the same standards as the "relevant" top dawg.
I guess all the people who made sites work in fucking Internet Explorer have moved on to better positions or retired :D
Hmm. How does Firefox rank on netsec concerns? I would think better than Chrome and Safari since not backed by one of the oligopolists. Might be a good target for support regardless of share.
Last month over 300 million pages were viewed with Firefox (a gross lower bound). This month an even more pages will likely be viewed with Firefox. Firefox remains the only popular independent browser. It has delegates in all web standard committees.
I don’t know what is your baseline for relevancy, but for most of us, this is more then enough to pass it.