I can't get it to work in Firefox 129.0. Also, I'm missing a hint, whether the regex-matches get excluded from CORS (then the default setting would be very dangerous), or included? And what when the button is set to disabled? Is the URL list in charge then? Or is it in charge, when enabled? And, do I have to match my local domain oder the remote?
So, in all, seems like a nice plugin, if it were working, and if it was more clear about what the settings mean.