After a reboot, the same thing happened
1. Clicked on the Forbes homepage --->Blank page
2. NoScript "temporarily allow this page"--->got the turn off AdBlock page
3. Again, NoScript "temporarily allow this page"--->turn off AdBlock, or login page
4. Logged in via the Facebook option--->Full access to Forbes
I guess I now have access to Forbes, but still wonder why it thinks I'm running AdBlock.
BTW: The only ads I'm seeing are for subscriptions to Forbes Magazine at the bottom of the homepage. If I open an article, there's a lot of blank space on the right side of the page alongside the article.
~~~~~Off Topic~~~~
@Liz:
I resisted the FB thing for years, it seemed counter-intuitive for privacy, and identity theft protection. For the purposes of joining a local special interest group, I created an account using a screen name, a throw-away email address, and fake biographical info. This is strictly against Facebook rules, and my account is subject to deletion as soon as I get caught... I'm aware I can get "caught", but our years of fighting trolls at the Dunning boards, and my time fighting spammers at the FlyFishing boards, have made me aware of the mistakes that the badguys make to get caught... But when/if that happens, creating a new account with more fake info is an option.