Important Facebook Platform Change

See the updated explanation of how this problem has been addressed.

The procedure for adding a tab to a specific Facebook page has changed, following Facebook’s decision to eliminate the automatically created profile pages for apps. That means the “Add to Page” button you used to find on platform pages has vanished, too.

Instead, you need to access a URL in the following format.

https://www.facebook.com/dialog/pagetab?app_id=YOUR_APP_ID&next=YOUR_URL

The App ID would be a numeric code you get from the Facebook developers utility. The URL would be the target for your iFrame, such as http://www.domain.com/fbtab/my_tab/

I will work on changes to Facebook Tab Manager to make this easier, to the extent I can, but I just found out about this.

Update: This change is addressed in the latest update to Facebook Tab Manager.