Firefox web-extension, that controls Content-Security-Policy introduced to clients with <meta> tags.
<meta http-equiv="Content-Security-Policy" content="... policy ...">
NB! This add-on does NOT control CSP headers. Find another one for that.
Firefox removed security.csp.enable in Firefox 99.
All know to me add-ons only remove http headers for CSP, thus this add-on.
If you found this, you need it and for one I believe that you know what you are doing.
BUT, I still won't provide a ready .xpi (signed or unsigned) or an easy way to install it.
It is meant to be used as a Temporary Extension. Download it and load it from about:debugging.