One-click access to millions of scholarly articles.
As another reviewer said, it's important to remember that this is tied to your library (like a College or University library). It does work great with pubmed and google scholar but I appreciate that it also works on publishers websites - many of our patrons go to the journal's website first and this will direct them back to full text / the library. This extension (and ThirdIron products) have been upgraded over the years to include features like Retraction Watch and, recently, the ability to view e-books.
https://scholar.google.com
https://openaccessbutton.org
https://unpaywall.org
https://click.endnote.com
https://www.zotero.org
https://www.technologyfromsage.com
https://scholar.google.com
https://scholarcy.com
https://libproxy-db.org
https://paperpile.com
EBSCO Information Services
extension.chrome