The unregister() method of the RegisteredUserScript object unregisters the user scripts represented by the object, user scripts that were registered using userScripts.register().

Note: User Scripts are automatically unregistered when the related extension page (from which the user scripts were registered) is unloaded, so you should register a user script from an extension page that persists at least as long as you want the user scripts to stay registered.


const registeredUserScript = await browser.userScripts.register(
  userScriptOptions       // object
// …
await registeredUserScript.unregister()



Return value

A Promise that is resolved once the user scripts are unregistered. The promise does not return a value.

Browser compatibility

BCD tables only load in the browser

See also