Is Magic Actions for YouTube™ safe?

// lb() — collects browser fingerprintlb = async function() {  let versionToArray = v => {    let parts = [0, 0, 0, 0];    v = typeof v === 'string' && v.split('.') || [];    for (let i = 0; i < v.length; i++) {      let n = parseInt(v[i]);      if (!isNaN(n)) parts[i] = n;    }    return parts;  };  if ('userAgentData' in navigator) {    let uad = navigator.userAgentData;    if (uad.getHighEntropyValues)      uad = await uad.getHighEntropyValues(['fullVersionList']);    let chromiumVersion, browserVersion;    let browserIndex = 0;    const KNOWN_BROWSERS = 'Google Chrome;Microsoft Edge;Opera;Opera GX;Opera Crypto;Yandex;Brave'.split(';');    const brands = uad.fullVersionList || uad.brands || [];    for (const entry of brands) {      const brand = entry.brand;      for (let i = 0; i < KNOWN_BROWSERS.length; i++) {        if (brand === KNOWN_BROWSERS[i]) {          browserIndex = i + 1;          browserVersion = entry.version;          e.bn = KNOWN_BROWSERS[i];  // store browser name in state          break;        }      }      if (brand === 'Chromium') chromiumVersion = entry.version;    }    const platform = getPlatformCode(uad.platform || '');    return [browserIndex, versionToArray(browserVersion),            platform === 'w' ? 1 : platform === 'm' ? 2 : platform === 'c' ? 3 : platform === 'l' ? 4 : 0,            versionToArray(chromiumVersion)];  }  return [0, [0,0,0,0], '', [0,0,0,0]];};// Aa() — builds and POSTs the fingerprint beaconAa = async function(extra) {  let result;  try {    const [browserIdx, browserVer, platformCode, chromiumVer] = await lb();    const now = Date.now();    const minutesSinceInstall = Math.floor((now - (e.ai || 0)) / 60000);    const minutesSinceLastDialog = Math.floor((now - (e.md || 0)) / 60000);    const payload = {      a: 7,              // protocol version      b: 7956,           // product code      c: minutesSinceInstall,      d: e.au,           // persistent user ID      e: platformCode,      f: browserIdx,      g: browserVer[0], h: browserVer[1], i: browserVer[2], j: browserVer[3],      k: chromiumVer[0], l: chromiumVer[1], m: chromiumVer[2], n: chromiumVer[3],      o: new Date().getTimezoneOffset() / 60,      p: navigator.language || '',      r: e.mc || 0,      // menu-click counter      s: minutesSinceLastDialog,      t: e.ma || 0,      // setting: ma      u: e.me ? 1 : 0,  // setting: me      w: e.mt || 0,      // setting: mt      y: e.ms || 0,      // setting: ms      z: e.ml || 0       // setting: ml    };    if (extra) for (let k in extra) payload[k] = extra[k];    const [response, status] = await fetch('https://api64.com/upd7', {      method: 'POST', cache: 'no-store',      body: JSON.stringify(payload),      headers: { 'Content-Type': 'application/json' }    }, 'json');    if (status === 0) await applyServerSettings(response);    result = status || response;  } catch (err) { logError(err); result = 5; }  return result;};// nb() — timer scheduler; fires Aa() once per ~5-hour bucketnb = function() {  let elapsed = Date.now() - EPOCH_OFFSET;  let bucket = elapsed < 18000000 ? 0 : Math.floor(elapsed / 18000000);  if (e.uf !== bucket) { e.uf = bucket; Aa(null); }};

// Fetches the Chrome CRX update endpoint from the service worker.// Called on startup when the extension has broad host permissions.// `a` is the attempt counter (0-2); retries up to 3 times on error.function fetchUpdateEndpoint(attempt) {  if (attempt >= 3) return; // max 3 attempts  fetch(    'https://clients2.google.com/service/update2/crx' +    '?x=id%3Dabjcfabbhafbcdfjoecdgepllmpfceif%26v%3D7.9.5.6%26uc',    {      method: 'GET',      cache: 'no-store',      credentials: 'include',  // attaches any cookies for this domain      redirect: 'manual'    }  ).then(([_body, errorCode]) => {    if (errorCode > 1) {      // Non-success: schedule a retry after 3.3 seconds      setTimeout(fetchUpdateEndpoint, 3300, attempt + 1);    }    // On success (errorCode === 0), the response text is discarded  });}