I had a student send me a message on Facebook about Florida Multiple Choice (MC) as to was their bar prep company going to have more multiple choice questions available for practice because it seemed like there weren't that many in the books.
The quick and dirty answer: No.
But I don't like quick and dirty (no comments from the peanut gallery please), so I did some research for you.
As to the great debate between Kaplan and Barbri: It appears that Barbri does have some online questions. It does quizzes at the end of each section for the topic and has a Simulated Florida Exam towards the end...