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firefox loads 9 instances of itself when started

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  • 1 has this problem
  • 318 views
  • Last reply by FredMcD

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My computer began running very sluggishly in the last 24 hours. I went to task manager in Windows ten. It shows 9 firefox programs loaded in there and running. I tried shutting them down to get to one but was unsuccessful. What could be causing that?

My computer began running very sluggishly in the last 24 hours. I went to task manager in Windows ten. It shows 9 firefox programs loaded in there and running. I tried shutting them down to get to one but was unsuccessful. What could be causing that?

Chosen solution

More than one process is normal for the current Firefox. http://www.ghacks.net/2016/07/22/multi-process-firefox/

Multi-process Firefox is codenamed "e10s". https://wiki.mozilla.org/Firefox/multiprocess


Try to disable multi-process tabs in Firefox. 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

Type about:config<enter> in the address bar. If a warning screen comes up, press the I Accept the Risk button. At the top of the screen is a search bar.

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Chosen Solution

More than one process is normal for the current Firefox. http://www.ghacks.net/2016/07/22/multi-process-firefox/

Multi-process Firefox is codenamed "e10s". https://wiki.mozilla.org/Firefox/multiprocess


Try to disable multi-process tabs in Firefox. 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

Type about:config<enter> in the address bar. If a warning screen comes up, press the I Accept the Risk button. At the top of the screen is a search bar.

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That helped by cutting the number from 10 to 4. Thank you.

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Glad to help. Safe Surfing.