# Utilities

Various modules provide shared utilities to the other components:

## {searchfox}`UrlbarPrefs.sys.mjs <browser/components/urlbar/UrlbarPrefs.sys.mjs>`

Implements a Map-like storage or urlbar related preferences. The values are kept
up-to-date.

```JavaScript
// Always use browser.urlbar. relative branch, except for the preferences in
// PREF_OTHER_DEFAULTS.
UrlbarPrefs.get("delay"); // Gets value of browser.urlbar.delay.
```

:::{note}
Newly added preferences should always be properly documented in UrlbarPrefs.
:::

## {searchfox}`UrlbarUtils.sys.mjs <browser/components/urlbar/UrlbarUtils.sys.mjs>`

Includes shared utils and constants shared across all the components.
