Looks like Adobe's Flash player thought of something neat again (i.e., probably bumbled up in a major way):
I was just trying to download their latest update from their site. Looks like this wants to download McAfee Security Scan while you're at it; then deleting the latter, it looks like the update gets deleted, along with it.
Hmm. It may very well be something I'm overlooking at my end, although I did try twice just now, with the same results. Nor then did I see any obvious way to skip the McAfee download.
Strangely, I'm pretty sure it did just the other day automatically install no problem on another box I maintain, so I guess I'll wait for that to happen on this one, one of these days. Or quite possibly rebooting this box & trying again might do the trick, but then hey I was just a-foruming.