Several months ago, when I was starting to using Mac OS, my browser was Firefox, because it’s stability and the add-ons.
One of my ‘must have’ add-ons is a flash blocker, for to reasons: it blocks annoying ads and saves you battery.

When I moved to Safari, I’ve tried to reach a flash blocker plug-in but no success at all.
Today, I give it another shot and I’ve discovered a great Safari Plug-in called ClickToFlash.

ClickToFlash in action on Youtube

The features of this plugin are:

• Block evil Adobe Flash
  Flash only when you want it.
• One-click Flash loading
  View blocked Flash with just one click.
• Higher quality YouTube
  Play H.264 videos in QuickTime.
• HD YouTube support (beta only)
  No more crappy, blocky video.
• Website Whitelist
  Allow Flash on certain websites.
• Application Whitelist (beta only)
  Allow Flash in certain applications.
• sIFR Typography Support
  Load quality typesetting automatically.
• Automatic Updating
  Download updates when they’re ready.

Now what I hope not to ear the fans on maximum speed, while my CPU usage is constant on 50% just because a Flash Add.

Download: ClickToFlash 1.4.2 (Stable Version) – Only for Leopard
Download: ClickToFlash 1.5 fc2 (Latest Beta Version) – Tiger, Leopard and Snow Leopard
Homepage: ClickToFlash