The Mac OS X Lion 10.7.5 DMG is an upgrade of OS X version 10.7 to improve the stability, compatibility, and security of the Mac.
Safari starting with Mac OS X 10.7.3 supports Oracle Java, and all open source standards and is much less easy to hack into than websites developed specifically only for Internet Explorer. Download file - Install Mac OS X Lion 10.7.0 Lion.dmg.