Hi !
I'd really like to put a five star for this nice work, but I'm stuck with the extension telling me it has been sent to Jabref, and Jabref opening a tab with no data inside. So I don't know why the bib file is empty …
[Firefox 75.0 / Ubuntu 19.10 / Jabref 5.0 via snap]

I will give it a much better rating if I can get it to work. So far, it's not working at all. I have an open JabRef library, with remote listening on, and using Arxiv just for testing. for example https://arxiv.org/abs/1905.09397 . The icon is not displayed in the search bar, but I find the icon clicking the 3 dots in the search bar. When I clich, it tells me it is searching to bibliographic data but just hangs there? Earlier, I had instances where it said it was sending data to JabRef but nothing happened thereafter.

I may be doing something wrong but I don't know what that would be. I tried copying just the BibTex citation, but that did not make any difference either.