Hi glcpgc, Thank you for contacting the support forum. I am happy to help. I understand that there is an issue when you open new tabs that more than one will open. If I may please clarify the exact steps you are taking in order to open a new tab this will help me further investigate the issue. The Firefox Free Download sounds fishy. Please check to see if this happens in safe mode to find the culprit or run a scan for malware. [[Troubleshoot Firefox issues caused by malware]] Thank you!