Develop a browser plug-in

Hi! Very nice to meet you online! Recently, I have been required to accomplish a research project related to comparative analysis of a wide range of cases, therefore I hope you help me develop a browser plug-in that shares similar characteristics to Endnote(A document management plug-in) to help me restore the cases I read online in time for later use. In the plug-in, we can create a case project in the plug-in, and then copy and paste the text on the browser or import the URL into the case project for storage. Looking forward to your positive reply and thank you for your help!!