Naughty widgets

MetaFilter just linked to a page that, for Mac users running Safari 2.0, will auto-install a widget into your Dashboard without your permission. However, it did not auto-install on my computer. All it did was automatically download a zipped file to my desktop, but lots of pages do that (e.g. when downloading files from SourceForge mirrors).

I think the trick to protect yourself is to turn off the "open safe files after downloading" option in Safari's preferences.