Hi there,

You rated 2 stars because you can not find the features.

The features I mention are available in the Note Sidebar Firefox extension. In Firefox, the options page is not easily accessible via right-click -> Options on the Note Sidebar icon, unlike other web browsers such as Google Chrome.
To enable certain features, such as changing the paper wallpaper, font color, rich text, etc., follow these steps:
1. Go to the page:
about:addons
2. Search for "Note Sidebar for Firefox"
3. Click on the three dots icon and then on "Preferences"
4. The Note Sidebar Options page will now appear

If you have any further questions, please do not hesitate to contact me at https://www.stefanvd.net/support
I am happy to help you there.

Thanks,