Contains the html elements that make up the preferences UI. for example, a checkmark to 'enable firefox sync'. In this example there is a html snippet that uses only the `identity.fxaccounts.enabled` setting, so no JavaScript needed.
#### librewolf.js
Other code called by the ui elements.
#### preferences.ftl
In our running xhtml example, we have a string id `data-l10n-id="librewolf-sync-checkbox"` that we can find in our`.ftl` file.
#### note: new files, these contain all the logic for the pref-pane: