HSTS specification declares no user recourse policy as I highlighted above. There will not be a way to accept invalid certificate.Strict transport security is not a default and enabled by website owner.
Density setting affects more than just font spacing and while default density font is good the other aspects of interface become too large while compact makes font very hard to scan
Firefox currently does not allow an exception for expired certificate when HSTS is used. This entirely precludes user from making a decision to accept risk and proceed anyway.For example, today wiki.php.net certificate expired among many other suppor...
