The new component install doesn't automatically install the JFBClogin component anymore. It tells you that you should though, but in your case, you shouldn't
We wanted it to automatically install previously while we weren't in 'stable' condition to ensure everyone was on the same page. Now we're trying to keep them separate so you can keep an older version of things if you don't want to upgrade.
I'd back up any files you've made modifications to first just in case...