Firefox crashes because of Java

Firefox had crashed today while opening pop-ups. Update 9:36 - I have reinstalled Firefox. Lets see if it fixses the problem. Update 3/02: Today Firefox has crashed for no apperent reason. Updte 12:05 - I have updated Adobe Flash Player, uninstalled Coupn Companion, and scanned with Malwarebytes. Malwarebytes didn't find anything. I have scanned computer with SuperAntiSpyware. It foud and removed cookies.