So I was thinking about downloading some widgets from apple. However since this is my first mac I don't wanna screw it up by downloading stuff that will "infect" it and make it not run as well. I figured the apple website would be trustworthy to download from but next to the widgets I could download it said "firmware" or "shareware". Isnt this bad even though it's from apples website? Also since I don't want to screw up my new computer what other things or file types should I avoid downloading? Thanks!!