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Bluhell Firewall Comments

Comment by Anamon
about Bluhell Firewall · Oct 2018 · Helpful Not helpful 2 Helpful Report as spam

Unfortunately, this add-on has so far not been ported to WebExtensions, so it's incompatible with Firefox Quantum (versions 57 and up).

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Appears to have been covered now, as of Nov 2020, at least according to a response from the BluHell developer in reference to WebExtensions, see:
https://addons.mozilla.org/en-US/firefox/addon/bluhell-firewall/reviews/1356507/