Back in January I blogged about the rise of Firefox coupled with the fall of Internet Explorer. At the time Firefox had risen to a very precise 21.34% while Internet Explorer continued to lead the ‘market’ with 68.15% (but was on the way down).

Ten months later the two haven’t waved at each other as they passed in opposite vertical directions, but the gap has closed a bit. According to The Register, Firefox now claims 23.75% while Internet Explorer has lost more ground and sits at 65.71%. Those of you who boast impressive mental arithmetic will see that Internet Explorer’s fall is only 0.03% larger than Firefox’s gain. Where that missing 0.03% went is anyone’s guess, but I’d put my money on Apple’s Safari. Or maybe Google’s Chrome.

To add to Mozilla’s chest-beating, their CEO John Lilly claimed that Firefox gained over 30 million unique users in a recent eight weeks period. Since then (if you haven’t heard), Windows 7 has been released – so it’ll be interesting to see whether the glacial-like erosion of Internet Explorer’s share continues to take place.