This plugin is converted by safari web extension converter.
Original version from chrome store, version 0.2.4_0
You can find the extension package from this folder cd ~/Library/Application\ Support/Google/Chrome/Default/Extensions
https://developer.apple.com/documentation/safariservices/safari_web_extensions/converting_a_web_extension_for_safari https://bartsolutions.github.io/2020/11/20/safari-extension/