const MAJOR_VERSIONS = ["2.3.0", "2.4.0"]; const badge = { init() { this.displayBrowserActionBadge(); }, 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();