Hey guys! Maybe no one will believe me but some apps just totally disappeared from my application folder without me doing anything...Am on OSX v10.9.4. I was on firefox and cmd+click a link to open a youtube video link in a new tab, got on the page and then the "the script could not be red or run or something like that" little window appears from the window top bar, 1st time i chose continue, it made the colour wheel and the little window reappears this time chose stop so i can close the tab and try reopening the link but firefox went unresponsive. I force quit to reopen but immediately after force quitting a grey question mark appeared on my firefox icon in the dock and i cant open it! No worries i know the drill for this prop so I delete the app from the dock by dragging it out then go to my app folder only to see that firefox have disappeared from there and not only firefox but my adobe reader, file juicer, Skype and photoshop apps had also disappeared! try to spotlight search, file search them but they are nowhere to be found.... Did anyone here ever got this kind of issue on 10.9.4? what can it be and what could have caused it!?