ShareMeNot is a Firefox add-on designed to prevent third-party buttons (such as the Facebook “Like” button or the Twitter “tweet” button) embedded by sites across the Internet from tracking you until you actually click on them. Unlike traditional solutions, ShareMeNot does this without completely removing the buttons from the web experience.
Note that this add-on is part of a research project and not targeted for general use. We welcome your feedback and will use it to improve our tool.