I actually made one quickly, published here: https://chrome.google.com/webstore/...

isaykatsman on Oct 25, 2017 | parent | context | favorite | on: Show HN: Arxiv Vanity – Read academic papers from ...

I actually made one quickly, published here: https://chrome.google.com/webstore/detail/arxiv-vanity-plugi... . It injects the arxiv vanity link on abstract pages and if you click the button when viewing an online arxiv pdf it opens the respective arxiv vanity link.