Hello, You can try Refresh Firefox: (https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings) : 1- Click this Refresh Firefox button directly, if you are viewing this page in Firefox. This won't work if you are using a different browser or on a mobile device. You can also find a Refresh Firefox button at the top of the Firefox about:support Troubleshooting Information page. 2- To continue, click Refresh Firefox in the confirmation window that opens. 3- Firefox will close to refresh itself. When finished, a window will list your imported information. Click Finish and Firefox will open. Note: There's also a Refresh Firefox button in the Firefox Safe Mode window, if you can't start Firefox normally. If you are unable to find the Refresh Firefox button on your version of Firefox, you can also do a manual refresh by creating a new profile. See instructions on how to create a new profile.