Need to remove unwanted icons

I am using Firefox for mac. On the navigation toolbar, on the right hand side, I now have 3 amazon buttons and 3 ebay buttons and they appear to be growing in number all of the time. I cannot figure out how to get them to disappear. If I get rid of the entire toolbar I lose the search and URL input fields. I right click them, no options, I don't see them under add ons or bookmarks or anywhere! I just want them to go away!!!!

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