How fo to get rid of the add-on WindowShopper?

I have an add-on called "WindowShopper" that somehow have mounted recently in Firefox (v20.0, Mac OS X 10.7.5).) I don't know how it happened in Firefox-* I * certainly didn't add - and I can't find anywhere in "tools > Add-ons, ' 'Extensions', 'Preferences', or anywhere else. If I could find it, I would delete it. It's maddening, I hate, it's buggy (its 'useful' pop-up screens tend to "stick", obscuring the product under), and it seems that the only way to get rid of it is to go back to using Safari, which I prefer not to do.

Please tell me how I can get rid of this add-on "WindowShopper.

Hi bartbrn, I noticed the word "Intermediary" in the screenshot you posted. I associate led many community toolbar extensions. If you have something in that direction, try to disable it.

Tags: Firefox

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