Moving tabs between windows, in macOS Safari

Great feature; drag a tab from one window to another - works like a charm!

(No tabs showing, to drag? Create a new tab - at which point, you'll see a tab, for your original, to drag.)

Drag not working? You always end up with a separate window? Likely because (interestingly): It's disallowed to drag tags between a "private" window, and a normal window - looks like the private-ness is per-window.

Recover lost Safari windows

You know how macOS Safari has that great feature (I believe credit goes to other browsers, for getting it earlier), where when you quit the app (or restart or it crashes), and when you start it up again, all your windows are right back where they were? And what a huge weight off your mind that is?

My Mac just had a Kernel Panic, and when I restarted, all the windows were gone - what a feeling of letdown and loss.

Luckily, I remembered another feature - which is apparently built on the same saved data:

History -> Reopen Last Closed Window

(If you like command-key shortcuts: shift - command - T)

And - faith restored: It saves a _bunch_ of them; just keep hitting it, to open the N last closed windows.

I don't know what the max of N is, but I did about 30, no sweat.

Phew!