hello, Can you try restarting Firefox in safe mode. Safe Mode is a special Firefox mode that can be used to troubleshoot and fix problems. Safe Mode temporarily resets some settings and disables add-ons that might be causing problems. By comparing Firefox behavior in normal mode to its behavior in Safe Mode you may be able to pinpoint the cause of the problem. [[Troubleshoot Firefox issues using Safe Mode]] --------------------------------------------------------------------------------------------------- Firefox's built-in popup blocker is designed to prevent sites from opening new windows if you have not taken any action on the page. However, that's a pretty liberal definition, so you still can get some popups from time to time. A more serious problem is that some add-ons may open popups. You might not even realize you have them, if they snuck onto your system with some free software you downloaded. Try this: Disable ALL nonessential or unrecognized extensions on the Add-ons page. Either: * Ctrl+Shift+a * or Tools menu > Add-ons In the left column, click Extensions. Then, if in doubt, disable. Usually a link will appear above at least one disabled extension to restart Firefox. You can complete your work on the tab and click one of the links as the last step. [[Pop-up blocker settings, exceptions and troubleshooting]]

Where did you download Firefox from? From the Mozilla website? http://www.mozilla.org/en-US/firefox/fx/#desktop http://www.mozilla.com/en-US/firefox/all.html