Wikipedia supports Safari 7.  I was just giving an example where a new version would be more helpful.   YouTube just made a change to HTML5 video by default.  This is only supported in Safari 8.  HTML5 is a smaller download, thus videos would load faster.  Again, an example where a newer version of a browser would be more helpful.  Nobody supports an unsupported browser.  This is a common practice because of security and manpower.  It would be irresponsible to support an unsecure platform. It also costs more to keep unsupported version going and nobody is going to waste manpower for that.   Currently a Mac OS version is only supported for ~4 years.  10.6 was last to have support dropped. Sorry, but it is not remotely reasonable for anyone to support 10.6 now.  You choose a Mac, you knew you will pay more for a Mac and have shorter support times.  At the end of the year, Microsoft is dropping support for all browsers except for IE 11 and above.  At that point, sites will start yanking out code supporting anything earlier than 2013 browsers.  This is just the way of computer life.