Dear All, my Firefox is broken. It starts and shows a blank tab, but I cannot open any site, not even about:config or the options pane. Typing anything in the address bar or the search bar and pressing Return does nothing. The only things I can do is opening new tabs (which will remain blank), and clicking on menu items in the main menu. None of the items that would open any dialog works, though. So far I have tried: * Starting Firefox in safe mode * Creating and using a new profile (firefox.exe /p) * Uninstall FF and re-installing the latest version * Uninstalling FF and installing a previous version (downgrade), using a new profile * Deleting all mozilla and firefox entries in the registry in an uninstall / reinstall cycle Now I am out of ideas. Any help is welcome. Thanks!