CRXcavator is a pretty useful tool for scoping out Chrome extensions like this:
https://crxcavator.io/report/mabdjppmcjpjploliggpbonahnjjlgk...
Similarly, Urlscan.io is pretty useful for scoping out sketchy links like the one in the extension's html: https://urlscan.io/result/d95c1113-a446-4c94-8b1f-dd7d530531...