Plug-ins like Adobe’s Flash, Microsoft’s Silverlight, and Apple’s Quicktime offer a lot of utility on the web, but there are times when you want to browse the web without distraction. Luckily, there is a fairly simple way of turning them off.
First of all, press CMD+, to bring up Safari’s preferences. Next, go to the “Security” tab. You’ll see a row of check boxes — find the “Enable plug-ins” check box under “Web Content.” Now, uncheck that box.
In the same section, you can also choose to just disable Sun’s Java plug-in. This is useful if you get tired of having Java applets slow down your web browsing.