Firefox 72.0.1 with no blocking, just private window: still no "Reader view" can be shown. The page which can't be shown in the "Reader view" is definitely bro

Firefox 72.0.1 with no blocking, just private window: still no "Reader view" can be shown. The page which can't be shown in the "Reader view" is definitely broken for me and everybody with disabilities who depends on Reader view. (Also, the same browser, when JS blocked by the extension: just black screen)