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when I go to Facebook it comes up and says I have adware and I need to uninstall yontoo layers. But I don't have that program on my computer. I cannot go to facebook with Firefox but I can with Internet Explorer. What do I do?

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Facebook popup says adware has been downloaded and I need to go to control panel to add/uninstall programs and uninstall yontoo layers. I don't have that in my programs. I have seen it popup at bottom of screen when facebook is loading. Now I cannot go to facebook with firefox but I can with Internet Explorer.

Facebook popup says adware has been downloaded and I need to go to control panel to add/uninstall programs and uninstall yontoo layers. I don't have that in my programs. I have seen it popup at bottom of screen when facebook is loading. Now I cannot go to facebook with firefox but I can with Internet Explorer.

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Did you check for Yontoo Layers in the Firefox Add-ons Manager > Extensions?