Hello, Sometimes Refreshing the browser can fix many problems. Try '''Refreshing your Browser''':- * To do this, click the menu button at the top right corner of the Firefox window. * Click the “Help” option near the bottom of the menu. * Click the “Troubleshooting Information” option in the Help menu. * Click the “Refresh Firefox” button at the top right corner of the Troubleshooting Information page. * You’ll be warned that this will remove your browser add-ons, reset your customizations, and revert other browser data to the default settings. Click “Refresh Firefox” to confirm you want to make these changes. If it doesn't solved your problem, then feel free to ask in Reply Section. Thanks for raising your question in Mozilla Support Forum.