contentScripts.RegisteredContentScript

RegisteredContentScript is returned by a call to contentScripts.register() and represents the content scripts registered in that call.

It defines a single function unregister(), which can be used to unregister the content scripts.

Note: If this object is destroyed (for example because it goes out of scope) then the content scripts will be unregistered automatically, so you should keep a reference to this object for as long as you want the content scripts to stay registered.

Methods

unregister()
Unregisters the content scripts represented by this object.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxOperaFirefox for Android
RegisteredContentScriptChrome No support No
Notes
No support No
Notes
Notes There is a polyfill available.
Edge No support NoFirefox Full support 59Opera No support NoFirefox Android Full support 59
unregisterChrome No support No
Notes
No support No
Notes
Notes There is a polyfill available.
Edge No support NoFirefox Full support 59Opera No support NoFirefox Android Full support 59

Legend

Full support  
Full support
No support  
No support
See implementation notes.
See implementation notes.

Examples

This code toggles a registered content script on a browser action click:

var registered = null;

async function register() {

  registered = await browser.contentScripts.register({
    matches: ["*://*.org/*"],
    js: [{
      code: "document.body.innerHTML = '<h1>This page has been eaten<h1>'"
    }],
    runAt: "document_idle"
  });

}

function toggle() {
  if (registered) {
    registered.unregister();
    registered = null;
  } else {
    register();
  }
}

browser.browserAction.onClicked.addListener(toggle);