Or, today I upgraded from Windows 8.0 to Windows 8.1, which was just as much fun as it ever is. In the process, I’ve learned that everything is an app now, and not just the small handy things that come from the app store . . . when they say “you’ll have to reinstall your apps,” they’re talking about everything.
Fortunately, I had backups. I did have one moment of near-panic when I couldn’t find my installation files for Quicken 4. The newer versions of the program use a different file format than the older ones, probably because the nice people (and I use the term loosely) at Intuit want their users to keep buying new versions of their software, instead of sticking with the one that’s been doing just fine for a decade or so now, and I wouldn’t even mind it so much if there were a conversion utility or something like that available — but there isn’t. You need, so far as I can figure out, to convert your Quicken 4 files into Quicken 6 files in order to convert the Quicken 6 files into the latest format.
Fortunately, I found the files. And my backup Quicken data files are on a separate drive. So that’s all right.
And I’d like to take this opportunity to plug MozBackup, a freeware utility for backing up Firefox and Thunderbird. It has saved me a great deal of sorrow and tears.
Dr. Doyle's Blog 
Backing up all my FF plugins sounds very useful.
MozBackup is for my money the most useful thing to come out of the Czech Republic in donkey’s years. It means I don’t have to set up all my Thunderbird email filters and saved folders all over again, as well.