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# 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.