Does not work at all. Greyed out, no prime filter, nothing.

simple works. no interactions needed.

Worked, now doesn't in Firefox 124.0.2. Grayed out when shown under the icon that lists Firefox Extensions, etc. I'd love to have the developer contact me or give me a hint on what changed. As I mentioned, it worked, not sure how long but not long as I just found it, now it doesn't.