# reject-import-preferences-module

Rejects usage of `Preferences.sys.mjs`, which is deprecated. Use
`Services.prefs` directly instead.

## Examples of incorrect code for this rule

```js
import { Preferences } from "resource://gre/modules/Preferences.sys.mjs";

ChromeUtils.defineESModuleGetters(lazy, {
  Preferences: "resource://gre/modules/Preferences.sys.mjs",
});
```

## Examples of correct code for this rule

```js
Services.prefs.getStringPref("my.pref", "default");
```