Hi,
The installed add-ons would be listed in Tools (Alt + T) > Add-ons > Extensions (on the left). You can try to Disable/Remove the above problematic extensions or try to change the Options. If the problem persists please check in Safe Mode.
Troubleshooting Extensions and Themes
Uninstalling Add-ons
Uninstalling Toolbars
Hi,
The installed add-ons would be listed in '''Tools''' ('''Alt''' + '''T''') > '''Add-ons''' > '''Extensions''' (on the left). You can try to '''Disable/Remove''' the above problematic extensions or try to change the '''Options'''. If the problem persists please check in [https://support.mozilla.com/en-US/kb/Safe%20Mode Safe Mode].
[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]