scripts

array of scripting.RegisteredContentScript. A list of scripts to register.

A Promise that fulfills with an array of scripting.RegisteredContentScript. If there are errors during script parsing and file validation, or if the IDs specified do not exist, no scripts are registered and the promise is rejected.

This example registers a content script that injects the file "script.js":

const aScript = {
  id: "a-script",
  js: ["script.js"],
  matches: ["https://example.com/*"],
};

try {
  await browser.scripting.registerContentScripts([aScript]);
} catch (err) {
  console.error(`failed to register content scripts: ${err}`);
}