Supported browsers
Internet Explorer - The earliest version supported is 10
Mozilla - The earliest version supported is 31
Safari -The earliest version supported is 7
Opera - The earliest version supported is 16
Chrome - The earliest version supported is 20
Javascript is required
In order to use the Build Safe requires that you have enabled JavaScript in your browser. Go into the settings of your browser to double check if JavaScript is enabled. JavaScript is enabled by default, usually.
Mobile devices
iOS - Earliest supported version is 9.0
Android - Earliest supported version is Lollipop 5.0