Use of Evernote web clipper add-on

I have used the Firefox add-on "Evernote web clipper" for years. Several months ago, I got a new laptop, and got web clipper up and running, for a while.Then, the web clipper icon disappeared. Firefox tells me it is still active, but I am unable to use it. Also, I am unable to log onto Evernote.com via Firefox. Have to use Edge. I have submitted this request before, and got suggestions, but none solved the problem. I am willing to pay to have this problem solved. Contact me at [edited phone# from public community support forum] -TomB