How do I install an application from a disk image?
I just got my first Macbook Pro yesterday and one of the first thing I did was to download and install Mozilla Firefox web browser onto my laptop. After I dragged the firefox icon to the application folder, everything was fine except I was left with a "Firefox 15.0.1.dmg" file that I didn't know what to do.
I experimented with it and tried ejecting the "disk" and dragging it to trash and emptying it. After I did that the Firefox icon on my dock went black and there was no response when I clicked the FireFox icon on my dock.
So I had to redownload and reinsintall everything to make it work again.
Are these dmg files stuck in my computer forever? My download folder is getting unnecessary big