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Firefox replicates multiple and disables my PC

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  • Last reply by cor-el

Barry Godofsky
Barry Godofsky
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Firefox doesn't close correctly. PC on Windows 10 freezes up. When I go to Task Manger, I see Firefox has replicated sometimes as many as 5-10 times or more at same time. I close down the FF tabs, try again to open FF, freezes again, re-open Task Manager, and it has replicated again. Can't seem to find cause or solution. Any suggestions? I have tried uninstalling FF then re-installing, but that doesn't work. BTW, same exact thing happens with Chrome, Duckduck, or Edge (which I despise), which tell me it's an issue with my Windows 10 computer, not with FF. TIA.

Firefox doesn't close correctly. PC on Windows 10 freezes up. When I go to Task Manger, I see Firefox has replicated sometimes as many as 5-10 times or more at same time. I close down the FF tabs, try again to open FF, freezes again, re-open Task Manager, and it has replicated again. Can't seem to find cause or solution. Any suggestions? I have tried uninstalling FF then re-installing, but that doesn't work. BTW, same exact thing happens with Chrome, Duckduck, or Edge (which I despise), which tell me it's an issue with my Windows 10 computer, not with FF. TIA.

All Replies (1)

cor-el
cor-el
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  • Top 10 Contributor
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Use one of these to close Firefox if you are currently doing that by clicking the close X on the Firefox Title bar, especially if you have multiple windows or Private Browsing windows open to prevent losing tabs in unnoticed windows.

  • "3-bar" menu button -> Exit (Power button)
  • Windows: File -> Exit

It is quite normal to see more Firefox processes running.

  • process for the main Firefox thread (user interface)
  • one or more content processes
    you see more content processes when Fission is enabled
  • process for the compositor thread
  • process for extensions
  • process for WebRender when this feature is enabled

You can find the current multi-process state on the Troubleshooting Information page (about:support).

  • "Help -> Troubleshooting Information"
    "Application Basics":
    Multiprocess Windows and Fission Windows
    "Remote Processes" (Web Content)

You can check the about:memory and about:processes pages for info about all processes. There are several toolkit.aboutProcesses prefs in about:config to show more info. See also the about:unloads page for info about the tabs.