Hi, Soelo - I work for Mozilla, and that sort of thing shouldn't be happening.įor what it's worth, in your example - can you ask for the details, and tell us what certificate Firefox thinks the food network is using? Skynt's suggestion that you keep your ESR Firefox up to date is a good idea - you should definitely do that! - but 'unknown issuer' makes me think that's not the problem here.īy far the most common reason that our users see this is because of a (frankly substandard, most of them are) antivirus or network monitoring programs intercepting traffic internally on their machine.
