Code: Select all
TypeError: BrowserUtils.principalFromOrigin is not a function[Learn More]
advanced.js:454:21
removeOfflineApp chrome://browser/content/preferences/advanced.js:454:21
oncommand chrome://browser/content/preferences/preferences.xul:1:1
openPreferences chrome://browser/content/utilityOverlay.js:575:10
oncommand chrome://browser/content/browser.xul:1:1