IIRC FF puts the domain on the ‘blocklist’ after the first manual choice, at least if the user selects ‘block’ instead of one-time ‘deny’ (haven't seen the dial

IIRC FF puts the domain on the ‘blocklist’ after the first manual choice, at least if the user selects ‘block’ instead of one-time ‘deny’ (haven't seen the dialog in a while). Hopefully The Browser doesn't pester the user each time, either.