Maybe something you have changed a long time ago in about:config that does not work out with a recent update ? I don't know if it's possible
Or add-ons as previously mentioned
Or DNS over HTTPS configured in Firefox that does not work anymore for any reason
Maybe something you have changed a long time ago in about:config that does not work out with a recent update ? I don't know if it's possible
Or add-ons as previously mentioned
Or DNS over HTTPS configured in Firefox that does not work anymore for any reason