On FOX, when they say "FOX News Contributor," that's the buzzword that means they are getting paid. If they give a FOX News title for them, like "Brit Hume, FOX News Washington Political Manager," It's obvious they're on the steady payroll.
You can bet the dorky broad that Gibson had on supporting Hillary that we've never seen before (With R. Emmet Tyrell, can't remember her name, neither will Hillary remember to sign her checks after that performance) DEFINITELY was not getting paid by FOX.