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mutiple firefox sessions running, yet I only opened one.

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  • Last reply by cor-el

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I am running Windows 10 and I use firefox for internet access as my browser. Things drag on when I open Firefox. And then I check Task manager and I see, 4, 5 sessions running, all dragging down memory in a big way. Slows the my PC. I am on the latest update and also have done resets. But that does not fix it. Any idea of how to only have Firefox run a session only when opened? And not fire up multiple sessions even though I only started one browser session? Thanks very much

Chosen solution

It is quite normal to see more Firefox processes running.

  • process for the main Firefox thread (user interface)
  • one or more content processes, see:
    Options/Preferences -> General -> Performance
    remove checkmark: [ ] "Use recommended performance settings"
  • 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
    "Remote Processes" further down

See also the about:memory page for information about the process IDs.

You can possibly set the number of content processes to 1.

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Read this www.ghacks.net/2016/07/22/multi-process-firefox/

If you want to disable multi sessions then try going to <about:config> and make sure you have these values set. browser.tabs.remote.autostart = false browser.tabs.remote.autostart.2 = false

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Chosen Solution

It is quite normal to see more Firefox processes running.

  • process for the main Firefox thread (user interface)
  • one or more content processes, see:
    Options/Preferences -> General -> Performance
    remove checkmark: [ ] "Use recommended performance settings"
  • 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
    "Remote Processes" further down

See also the about:memory page for information about the process IDs.

You can possibly set the number of content processes to 1.