I don't think it should but it was taken down from Firefox's store because of a DMCA copyright takedown. Firefox was required by law to remove it. Using the extension itself is a legal grey area, but distributing it is usually illegal.
reply> because of a DMCA
replyThat law doesn't apply to many HN readers
It’s not illegal. But it’s a step too far for some.
replyIt's not. Op is wrong
replyIt's been taken down by DMCA copyright strikes on every western platform that could distribute it. That's why you can't find it on the Firefox extension store anymore
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