If this does not work by normal means, select the disk image icon and then, in the Finder menu, select File > Eject Firefox. When the installation step is finished, close the two small Firefox windows.This starts copying the program files to the Applications directory on your computer. When it is on top of the Applications icon, release the mouse button. Click and hold the Firefox.app icon, then drag it on top of the Applications icon.Once the download is complete this window appears: If it does not, click the link on the page. To download Firefox, visit and click on the big green button labeled 'Firefox 3.5 Free Download.' The page shown below opens, and the download starts.Firefox: InstallingOSX Installing on Mac OS X
