Why not take a look at another secure browser that meets commonly used standards and is running on any operating system?
Finally, I did it! I managed to transfer my domain hasenkopf2000.net to another registrar. Instead of paying 19€ per year I got down to only 8.99$. Due to a special offer I got it even cheaper: 5.79€ per year!
And I finally got what I always dreamt of since I am sharing thi server with a friend of mine: Full control over my DNS records :-D