Cannot Connect to App Store / Establish Secure Server Connection

Question

I've seen a lot of posts on this:
App Store Error: "Cannot Connect to the App Store" (No Internet Connection)
Google (or any other https://) Site Error: "Cannot Establish a Secure Server Connection"
My OS is 10.8.5.
Obviously, I've checked that I have an internet connection. FireFox works... non-secure (http://) sites work... I'm starting to pull my hair out.
These are all suggestions from posts that I've seen. Some worked for some people, but not me!
I've checked that my Date & Time are correct, as suggested.
I've created a new Network Location in my Network System Prefs. Nope. Didn't help.
I've gone thru every Certificate in my Utilities / Keychain Access and eliminated all the blue '+'s'.
I've deleted every *.plist file from my Preferences that I thought might help. Nada. Still no App Store, no Google.
THEN, a Mac epiphany:
Go back to Date & Time Preferences
Under the Date & Time tab - check the box "Set date and time automatically:" (you probably do. I did. But make sure.)
Under the Time Zone tab - check the box "Set time zone automatically..." AHH HA! I didn't have it checked.
Now a message comes up - something like, you don't have your Location Services enabled... hmm.
Go to: System Prefs > Security & Privacy
Under the Privacy tab - check the box "Enable Location Services" (You may have to unlock [paddlelock in lower left] to make changes)
That did it. App Store instantly loaded as well as https:// google.
For those who have tried all the other posted suggestions - before you pull the rest of your hair out - this is one more thing to try.
Hope it helps.

Answer 1

Ignore.