Ad Block Feature isn't Working...

I have “Block Advertisement” box checked:

But It seems like blocking feature is not working properly, I still see ads in every web site I browse, an example:

Did I get ad blocking feature wrong?

The preference isn’t what it seems to be. Here’s what the Help page on Preferences > Web states:

Over here, I block ads by (1) using the AdSubtract style sheet as the default style sheet in Preferences > Web > Style Sheet, and (2) having GlimmerBlocker installed. GlimmerBlocker is (has?) taking over AdSubtract, but if you can find the old style sheet it’s helpful in ways that GlimmerBlocker isn’t.

korm, thank you so much, I’m going to try it :slight_smile: