Had to wipe Mac when hacked, and reinstall new OS. Did full backup prior. Did full restore, but Firefox and Word was missing. Downloaded Firefox several times. Now when I click the icon I get the install window each time I use it, and have to click on the app box in that window, then have to go through verification ("an app downloaded from the internet"etc....) before I get the search screen. Also get a question mark on my dock where the Firefox icon shows up after all this, after shutting it down and rebooting each time. Do you know what I have done wrong? Why didn't Firefox restore with the complete backup?