I need some advice on what to tell mail.com support. I can log into my mail webmail account mail.com, but when clicking to access my inbox to view my mail, this message appears: "Blocked by Content Security Policy This page has a content security policy that prevents it from being loaded in this way. Firefox prevented this page from loading in this way because the page has a content security policy that disallows it." Am I correct in assuming that the site in question is responsible for setting their own CSP, so they seem to have gotten something mixed up? I have tested with all add on disabled as well. I found that the issue happens on Firefox 25.0.1, released 2014, (I cannot to due to add on compatibility) but does not happen on latest browser version so I am puzzled how can a Content Security Policy (CSP) rule be browser VERSION dependent? Their support email just feeds me the "upgrade your browser" but is this not a bad CSP rule they can fix? If mail.com will not help me can I disable CSP just for this site (not globally) in the browser - is there an add on that I can use to work around there unhelpful email support?