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why 2 firefox running in tsk mgr. it's using all my memory

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After latest update i noticed 2 fierfox exe. running when i went to task mgr.-Now 1st I am using very old vista o/s and only have 2 gb. memory, now i'm pretty sure that has a whole lot to do w/slowdown of page loading-eh?---51.0.1 32 bit.-I Really like firefox browser.. however with 2foxes running i'm out of memory. Thank You for your time.

After latest update i noticed 2 fierfox exe. running when i went to task mgr.-Now 1st I am using very old vista o/s and only have 2 gb. memory, now i'm pretty sure that has a whole lot to do w/slowdown of page loading-eh?---51.0.1 32 bit.-I Really like firefox browser.. however with 2foxes running i'm out of memory. Thank You for your time.

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Multi-process tabs and windows is enabled in the current Firefox release. This means that see more than one Firefox process running, one process for the main browser process and other processes for content processes (set via dom.ipc.processCount). You can see this on the "Help -> Troubleshooting Information" page (Application Basics: Multiprocess Windows).

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Thanks for your time in answering my question. I am way overdue for an upgrade to a machine w/more memory---Mozilla support is awesome - what a quick& timely reply. Try getting sane day let alone same hour support from those other browser makers--doesn't happen. I love the Fox!

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You can disable multi-process tabs in Firefox by setting the related prefs to false on the about:config page.

  • browser.tabs.remote.autostart = false
  • browser.tabs.remote.autostart.2 = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.