Search Support

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

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

multiple instances of the firefox

  • 4 àwọn èsì
  • 1 ní ìṣòro yìí
  • 180 views
  • Èsì tí ó kẹ́hìn lọ́wọ́ cor-el

more options

when i open firefox. it shows 6 instances open under task manager but i only have 1 tab of firefox open

when i open firefox. it shows 6 instances open under task manager but i only have 1 tab of firefox open

Ọ̀nà àbáyọ tí a yàn

Let's say you open 3 tabs and close two. Firefox may not terminate the content processes used for the closed tabs because you likely will open some more tabs during your session. At least, that's the theory. Also, some tabs are used for the browser itself.

Ka ìdáhùn ni ìṣètò kíkà 👍 1

All Replies (4)

more options

What do you have set here? see screenshot

more options

Ọ̀nà àbáyọ Tí a Yàn

Let's say you open 3 tabs and close two. Firefox may not terminate the content processes used for the closed tabs because you likely will open some more tabs during your session. At least, that's the theory. Also, some tabs are used for the browser itself.

more options

thank for answering. hope you are having a merry Christmas.

more options

It is quite normal to see more Firefox processes running.

  • one process for the main Firefox thread (user interface)
  • one or more content processes, see:
    Options/Preferences -> General -> Performance
    remove checkmark: [ ] "Use recommended performance settings"
  • a process for the compositor thread
  • a process for the WebRender when this feature is enabled
  • a process for extensions

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.