Speaking of the very plugins related to this one of your, there's actually no replacement as well as no way to make it work with IE 11 nor earlier releases so far. When Edge came out they called it a day with older browsers, so there are only hit or miss solutions over there, suppose to work in one specific case each. I personally switched to this tool for a purpose working with PDF documents https://edit-pdf.pdffiller.com/ It's a paid one and quite not similar to the one you had, but nevertheless it's the cheapest and works ok