Pubmed-download is a subscription-based tool designed for Firefox that enhances the research process on PubMed. It allows users to quickly access articles through Sci-Hub with the click of a button, facilitating easier downloads of scientific papers. Additionally, the tool displays the impact factor of articles, providing valuable context for researchers.

This tool is particularly useful for academics and professionals who frequently utilize PubMed for literature reviews and research purposes. While it streamlines access to many articles, it's important to note that some articles may not be downloadable or display their impact factors. Overall, pubmed-download offers a convenient solution for navigating PubMed's extensive database.