Frequently when I have an active dest top, and I try to open Firefox I get this" "Close Firefox" Firefox is already running, but it is not responding. To open a new window,you must first close the existing Firefox process, or restart your system." When this happens Firefox is inactive (closed). I can not reopen Firefox from the present desk top, and must reboot my computer. I have Firefox 3.6, Win XP Home. <br /> This used to happen a few times a month, and I could live with it, but it is occurring much more frequently now. <br /> Please advise. <br /> Bob Burns ''moderator edited this posting to fix the formatting''