Q: Caches & Cookies

I complained about this same issue already after installing Safari 10 and then later Sierra.  However, today after having read some related entries here, I deactivated extensions BLUR and ADBlock, leaving only Ghostery.  So far no old crap has returned.  But, as I also previously complained, the Develop-Disable Caches won't work.  The only thing (that I've figured out) is to regularly unmark the Disable, then use Empty Caches, and then again enable the Disable.  Haven't tried (yet) whether or not the "unmark Disable" is needed, that is, if leaving enable enabled and clicking the Empty Caches really also does what it is supposed to do.  Anyhow, I've done the manual "procedure" now since Safari & Sierra installs, so I've "grown into using the method."

I tested regarding the above "unmark Disable": there is no need to do so, the "Empty Caches" works without a need to disable.

I do NOT use Facebook (not even touching it with a 10-feet fishing pole).  I mistakenly said previously that I got rid of the returning crap: it stayed away for a short while, but then continued to reappear.  I have no other ideas.  I'm currently completely "clueless."

Do a backup, preferably 2 backups on 2 separate drives.

Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J.  When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder.  Select Library/Safari. Move all files beginning with History to your Desktop.

Restart the computer and test. If it works okay, delete the files  from the desktop.

If the same, return the files to where you got it  from, overwriting the newer one.

Thanks to leonie for some information contained in this.

Do you have your user/home folder selected?

In Finder hold down the option/alt key while selecting the Go menu item. Select Library.

I didn't even move, because I don't want to mess around and get even into deeper yogurt.

I spent over 46 years in MF IT, but the behavior of the cookies does not make any sense to me:

I'm getting every day back cookies related to sites that I've not visited in years, I get back related to sites that I've not lately visited (but perhaps weeks or months ago), and then also other sites' related cookies that I don't allow to stay.  I do allow some (banks, etc.).

I also approx. a week or two ago posted that the "Develop-Disable-Caches" doesn't work: even that option marked, there are "TONS OF CACHES" after EACH browsing (tracking caches and other crap).  Thus, compared with the previous Safari, I now remove ALWAYS after each browsing ALL CACHES.  Also, many times a day I remove the new and returning cookies that I don't want on my iMac.

So-called: "NOT-AUTOMATIC-PROCESSING." 

I'm NOT using iCloud or any other Clouds.

After Sierra install.