Hi, no idea what they use, but I suspect Flash or Java...
Learn about Safari 5.1.7 and Leopard Security Update 2012-003.
Mac OS X 10.5, Product Security, Safari 5.1 (Mac OS X 10.6), Safari 5.1 (OS X Lion)
Safari 5.1.7 for OS X Lion, Safari 5.1.7 for OS X Snow Leopard, and Leopard Security Update 2012-003 disable out-of-date versions of Adobe Flash Player.
Out-of-date versions of Adobe Flash Player do not include the latest security updates and will be disabled to help keep your Mac secure. If Safari 5.1.7 or Leopard Security Update 2012-003 detects an out-of-date version of Flash Player on your system, you will see a dialog informing you that Flash Player has been disabled. The dialog provides the option to go directly to Adobe's website, where you can download and install an updated version of Flash Player.
If you need to re-enable an out-of-date version of Flash Player, you can do the following:
1. Navigate to the /Library/Internet Plug-Ins (Disabled) folder.
2. Drag "Flash Player.plugin" into /Library/Internet Plug-Ins.
3. If the browser is running, quit and restart it.
However in looking at the Flashplayer it shows Plug in version 10.3.183.11 is installed. It also shows two buttons Check for updates and Never check for updates (and I didn't do this) but the Never Check is checked. Should I change that and then click on Check Now for updates?
And last question...why would I want to enable an out of date version of Flash Player?
.why would I want to enable an out of date version of Flash Player?
If you needed Flash & were running an older OS like 10.4/10.5, that had no up to date versions available.
See in each Browser which version of Flash it thinks it has, also shows the versions available...