I have a Synology NAS which is set up for HTTPS using a certificate from LetsEncrypt (Synology's recommendation) However when I try to access the NAS via my Firefox browser (v79.0)''' Initially''' I get an error. The "i" in the URL box advises me "Connection not secure" However, when I press the "try again" button I can access the NAS as normal. Checking the padlock in the URL box it confirms it confirms I have already set an exception to this login. This happens ''every time'' I restart my Windows 10 pc. However, if I just close the browser and try again during the same session it connects straight away. It is not a showstopper but I would like to get to the bottom of it with your help... Why will it stop me on first attempt but ''always'' give me access when I press Try again?