This looks that you are experiencing some circular redirect or you might be blocking files from some locations. Uncheck Use hardware acceleration when available. Warning Unresponsive script Firefox Editing Tools Article Discussion Edit Article Translate Article Show Translations What Links Here Show History Customize this article Firefox Version 51 Version 50 Version 49 Version 48 If I reset firefox then the navigator:getter error disappears but the tab problem remains. https://support.mozilla.org/questions/951670
Any thoughts are welcome. anushbmx, cor-el asked me to post a link to a publicly accessible page that doesn't require authentication (signing on). Did you try to click those items to check the server response? You can try to configure your firewall to see if it helps the hang go away.