Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

ابحث في الدعم

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Firfox opens 7 versions of itself or more!!!

  • 1 (رد واحد)
  • 1 has this problem
  • 1 view
  • آخر ردّ كتبه cor-el

Peter Riva
Peter Riva
more options

When I check Task Manager, there are 7 or more Firefox programs running... the other day there were 15! So today I rebooted (Firefox causes crashes and lock-up all the time) and then opened Tack Manager and then ONLY one program (besides all the programs running in the background) and the image shows you what I got! Why the hell is Firefox opening all these program clones of itself? These are NOT onscreen, but they are always in Task Manager. NOTE: The only open window shows only one tab. Now, if I close Firefox all those lines disappear. But when I reopen it, the number goes up! every time. What the heck???? I've been a supporter, used Firefox for 10+ years but may have to go to the dreaded Chrome is this continues. I can't reboot my computer every day because of Firefox - sometimes twice.

When I check Task Manager, there are 7 or more Firefox programs running... the other day there were 15! So today I rebooted (Firefox causes crashes and lock-up all the time) and then opened Tack Manager and then ONLY one program (besides all the programs running in the background) and the image shows you what I got! Why the hell is Firefox opening all these program clones of itself? These are NOT onscreen, but they are always in Task Manager. NOTE: The only open window shows only one tab. Now, if I close Firefox all those lines disappear. But when I reopen it, the number goes up! every time. What the heck???? I've been a supporter, used Firefox for 10+ years but may have to go to the dreaded Chrome is this continues. I can't reboot my computer every day because of Firefox - sometimes twice.
Attached screenshots

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

That is about content processes that are used to isolate tabs.

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.