const MAJOR_VERSIONS = ["2.3.0", "2.4.0"]; const badge = { async init() { const currentWindow = await browser.windows.getCurrent(); this.displayBrowserActionBadge(currentWindow); }, async displayBrowserActionBadge() { const extensionInfo = await backgroundLogic.getExtensionInfo(); const storage = await browser.storage.local.get({ browserActionBadgesClicked: [] }); if (MAJOR_VERSIONS.indexOf(extensionInfo.version) > -1 && storage.browserActionBadgesClicked.indexOf(extensionInfo.version) < 0) { browser.browserAction.setBadgeBackgroundColor({ color: "rgba(0,217,0,255)" }); browser.browserAction.setBadgeText({ text: "NEW" }); } } }; badge.init();