@rushkeating The plugin needs to see the page you're looking at to know when you're on a journal website and which article you're looking at. It needs to "change" the page to give you a link to the free copy.
If you're uncomfortable with that, you can simply query the database directly. It's more time consuming but it gives the same result.
@KnivesOnly Anytime! I first heard about it from tumblr. Social media can be really helpful for sharing these things!
Scholar Social is a microblogging platform for researchers, grad students, librarians, archivists, undergrads, academically inclined high schoolers, educators of all levels, journal editors, research assistants, professors, administrators—anyone involved in academia who is willing to engage with others respectfully.