Mozilla Firefox (from Version 2.x): How should the browser be configured so that there are no problems?

Activate SSL connection (Secure Sockets Layer):

Menu item: Options/Settings
Tab: "Advanced"
Category: "Encryption"
Please activate "SSL 3.0" and "TLS 1.0"

JavaScript:

Menu item: Options/Settings
Tab: "Content"
Please activate the control box "Activate JavaScript"

Do not save form data:

Menu item: Options/Settings
Tab: "Privacy"
Set the options from "Firefox is set to remember history" to "Use custom settings".
Unselect "Remember search words and form data".

Passwords:

Menu item: Options/Settings
Tab: "Security"
Please deactivate "Save password". If you want to save another password, select this box and add the website as an exception.

Allow pop-ups:

If a pop-up is being blocked by Mozilla Firefox while using, click on the "Settings" button located on the corresponding bar "Firefox has prevented this website from opening a pop-up window". Add Zen Casino as an exception.