Web designers and developers, check this out. I found this little gem while reading SwissMiss.
On the surface, it quickly tells you what browsers people are using so you can share that information with clients. But if you’d like to include this on your own website, the script detects an old version of Explorer or my favorite, Foxfire (that’s what I call it) and allows users to update. Creator Büro, from Portugal, built this to save time optimizing for old browsers and we thank them for sharing.
Find it at outdatedbrowser.com