Yes, I have installed my root CA certificate in my browser
You need a certificate signed by a commercial CA, which is trusted by your browser (or install thecertificate of your CA into "Trusted Root CA" in your browser).
I have not seen these mssages in my FF console, so seeming to show that my CA certificate is corrrectly installed in the browser.
Where so you find these messages ? what tool do you use to get them ? javascriot console ? under Firefox ?
Browser console (Safari, FF, Chrome).