I AM HAVING TROUBLE WITH FIREFOX/JAVA. I KEEP

Java is your first problem get rid of that malware... second problem is you don't have a mac, haha, just kidding, but seriously get one.
To answer your question, I would try uninstalling your add ons 1 or 2 at a time to see which one will fix er back up. If that does not work, get Revo uninstaller from download.com and use it remove firefox (and java) completely. You can download the newest version any time for free. Personally I dont like a lot of background processes so I use the portable version of firefox which is also free.