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I am connected to the internet and I close all tabs on the screen. Now I want to open a new tab, but Firefox opens a pop-up window stating"Firefox is already running, but not responding . To open a new window, you must first close the existing Firefox pr

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I am connected to the internet, but all tabs are closed. Now I want to open a new tab, But Firefox pops-up with "Firefox is already running, but not responding. To open a new window, you must first close the existing Firefox process, or restart your system". Does anyone here know how to fix this? Thank´s, BL.

This happened

A few times a week

I am connected to the internet, but all tabs are closed. Now I want to open a new tab, But Firefox pops-up with "Firefox is already running, but not responding. To open a new window, you must first close the existing Firefox process, or restart your system". Does anyone here know how to fix this? Thank´s, BL. == This happened == A few times a week

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Firefox is shutting down windows I want to remain open. Example: I am done viewing one window. I click the X to shut the window and it shuts two windows. Every single time, attempt to close one windows, two windows close. Lately, I have been opening several windows with nothing but google search, just so it will shut that window and not something else I want to remain open. I could understand this if I was using tabs, but I am not. This has been going on for over two weeks. I don't like going back to history to open a window, I did not want closed in the first place. Isn't that what 'Windows' is all about? Any ideas?