SauceNAO Extension JS - Firefox

browser.contextMenus.create({
  id: "get-sauce",
  title: "Get Sauce",
  contexts: ["image"],
});

browser.contextMenus.onClicked.addListener((info, tab) => {
  if (info.menuItemId === "get-sauce") {
    var saucenao_query = browser.tabs.create({
            url: "http://saucenao.com/search.php?url=" + info.srcUrl,
            active: false
        });
  }
});