3 Replies Latest reply: Dec 5, 2013 10:56 PM by mende1
cherie14 Level 1 (0 points)

each time I download something ie from firefox such as facebook video calling it will not open I have to go to the downloads folder in the finder and then if I click on it it says can't open because it is from an unknow developer.... this happens wih all downloads. How can I change this??????? PLEASE HELP with basic instructions thanks (I get confused with the tech jargon).



iMac, OS X Mavericks (10.9), 21.5" late 2009