Windows 7 How to Block Slide-In Ads in Firefox on Windows 7 Pro?

[jtpcamp]

I am not sure which forum to post this question. If on the wrong forum please move to correct one.
Does anyone know a way to prevent Slide-in ads on websites I visit? The browser I mainly use is Firefox and am using Win 7 Pro X 64.

 

[Fixer1234]

The combination of Adblock Plus and Ghostery will take care of pretty much everything.

 

[jtpcamp]

Thanks Fixer, I just installed Ghostery and I'll see how it works.