Any item that uses flash player won't open. I have updated and reinstalled both programs. The flash player plugin works fine with google chrome and IE.
Internet Explorer uses a different Flash player than Firefox, and Flash is an integral part of Google Chrome (ref.), so the fact that Flash works in those browsers doesn't mean anything.
If Flash isn't working in Firefox, try the test links and troubleshooting suggestions in the Flash Plugin - Keep it up to date and troubleshoot problems article and here: