On Mac 10.6.8 running Firefox 11 one account works fine, while on the other FF appears to launch but will not open a window.

On an iMac using OS 10.6.8 and Firefox 11, one account runs FF just fine but another account on the same machine does not. FF appears to launch...the control bar appears at the top of the screen and a light comes on below the icon...but no window opens. Clicking on a link in an email brings same result.

OOOOPS! Standing in the shower this morning I realized what the problem was. A visiting nephew showed my wife & I a YouTube video and displayed it on the big screen TV by dragging the FF window to the TV while logged-in to my wife's account. When we finished watching the video we switched the TV input back to TV and never dragged the window back to the computer screen. Happy to report all is now working as it should.

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