Very useful and well implemented, but unfortunately also spyware. Do not use.

Really handy, use it daily

Won't allow the PDFs opened in a tab to be added to the library, stating that "Mendeley web importer cannot access local files on your computer". Also bugging all the time.

Unreliable

no me deja ver en word este complemento

Really buggy. Often can't login properly. Can only be resolved by deleting my Elsevier cookies.