Why just block those ads?

AdblockPlus
https://addons.mozilla.org/firefox/1865/
Also, read this:
http://adblockplus.org/en/getting_started

Thank you - total success, very helpful.

This just started today. I get the following interest based add that I can't get rid of. It says to click on the close box to stop the enhancements but they keep reappearing. And to make matters worse ads are now appearing on yahoo; I click on opt out but each time I relog on, the ads are there again and it shows that I never opted out. It's even worse with IE; the popup add below appears and I can't even opt out.

I clicked on the so-called plugin removal tool but it's inactive. I ran norton power eraser and it's not showing up as malicious software.

Coupons Browser Update

We have enabled our Coupons add-on which will enhance your browsing experience by displaying coupons as you shop and browse your favorite sites on the web. Check out our Privacy Policy and Terms and Conditions.

Turn off these enhancements Close

Licensor does not require that you provide us with personal identifying information in order to use most of our services. Therefore, you can always choose not to provide such information.

To learn how to uninstall the Plugin and any bundled software, please visit http://www.dropinsavings.com/uninstall

If you do not want to receive e-mail or other mail from us, email dropinsavings@gmail.com to modify your preferences.

The Help portion of the Plugin on most browsers will tell you how to prevent your browser from accepting new cookies, how to have the browser notify you when you receive a new cookie, or how to disable cookies altogether. The Plugin Service enables you to update certain browser configuration settings, such as your home page or your default search provider. If supported, you may configure these options during the installation process and in the Options menu in the Plugin Service.