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I use Firefox browser in Ubuntu 10.10, but now it doesn't work. When I try to open the browser, an error message is displayed with the following content

Close Firefox Firefox is already running but is not responding. To open new window, you must first close the existing Firefox process, or restart your system.

Then I restart the system but again it doesn't work. Then I watch the task manager and I see that zombie is written in the same line as firefox like shown in the following image.

enter image description here

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migrated from stackoverflow.com Jan 31 at 10:51

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1 Answer

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Check out this link.

  • It seems your system might not be up-to-date.

  • You could be stuck in the middle of some upgrade.

  • There could be system (memory or hard-disk) issues.

  • Check you /var/log/syslog

  • Try upgrading to Firefox's latest version.

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