Download WebSecurity for mac chrome extension. This extension is installed via the Administrator of the computer so that web browsing follows the policies in place for the ATI. and install in your Google chrome browser. This is Direct WebSecurity for mac Crx download for Chrome it is also called WebSecurity for mac offline CRX for chrome Download. This WebSecurity for mac is used to This extension is installed via the Administrator of the computer so that web browsing follows the policies in place for the ATI.