Mac user OS 10.6.8 Firefox 6.0.2. Click the Firefox icon in dock, program does not open new window. Type cmd+N to open new window, cmd+T to open new tab or cmd+L to enter URL, nothing happens. What causes this, and what can be done?

Mac user OS 10.6.8 Firefox 6.0.2. Click the Firefox icon in dock, program does not open new window. Type cmd+N to open new window, cmd+T to open new tab or cmd+L to enter URL, nothing happens. What causes this, and what can be done?

It's strange. The problem apparently resolved itself after I ran TechTool on it. When I clicked on Firefox last night, I had no problem opening a window. Thanks for your help. (As to your previous post, the focus was on Firefox and neither the speed keys nor the menu bar would open a window or tab of allow me to enter a URL to open a window. Strange!)

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