I know this is a long shot. I only used Chrome, a few years ago. In the past couple of years, I'v transitionned to Firefox, and I use Vivaldi on the side (a Chromium based Browser).
I used your Extension ALL the time when I was on Chrome, and sometimes now when I'm on Vivaldi. I haven't quite found an equivalent to your Extension on Firefox.
I think it would be awesome if it was also available for Firefox. I'm not holding my breath for it, but I figured I'd at least ask.
Thanks, Cheers!