Hi,
Please also try after deleting the Cache and Cookies under Details in Tools (Alt + T) > Clear Recent History. Choose Everything in Time range to clear. Clear Recent History
If the problem persists, please check in Safe Mode
Problematic Extensions
Troubleshooting Extensions and Themes
Uninstalling Add-ons
Uninstalling Toolbars
Hi,
Please also try after deleting the '''Cache''' and '''Cookies''' under '''Details''' in '''Tools''' ('''Alt''' + '''T''') > '''Clear Recent History'''. Choose '''Everything''' in '''Time range to clear'''. [https://support.mozilla.org/en-US/kb/Clear%20Recent%20History Clear Recent History]
If the problem persists, please check in [https://support.mozilla.com/en-US/kb/Safe%20Mode Safe Mode]
[http://kb.mozillazine.org/Problematic_extensions Problematic Extensions]
[https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes Troubleshooting Extensions and Themes]
[http://support.mozilla.com/en-US/kb/Uninstalling+add-ons Uninstalling Add-ons]
[http://kb.mozillazine.org/Uninstalling_toolbars Uninstalling Toolbars]