20220822Mon Update:
For about a month now it's been badly interacting with Firefox and Windows AV to cause prolong freezing of all FF windows upon copying either URL or URL+TITLE. There is another less popular plug in that only freezes for an instant. This one has been taking a loooooong time - over 5 minutes if the free Memory is running low, requiring a restart of FF. I'm happy I found the culprit. Now I hope the coder can find and resolve.

Previously:
I've used the Kung Fu out of this thing for a year or two and I missed it. Ah foun u!