Or you could report this as a security bug on those browsers. This vulnerability does not exist in Safari on any platform: macOS, iOS, or windows. Admittedly i

Or you could report this as a security bug on those browsers. This vulnerability does not exist in Safari on any platform: macOS, iOS, or windows. Admittedly in the last case because it is alas dead :D I would have assumed that on macOS Firefox and Chrome use the platform APIs that support secure storage of data, and would absolutely consider this to be a security bug if not.