Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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

But Why Tho

  • 3 replies
  • 0 have this problem
  • Last reply by cor-el

Why for 1 tab would there need to be this many different processes?

Why for 1 tab would there need to be this many different processes?
Attached screenshots

All Replies (3)

Hi

Do you have any add-ons installed in Firefox? I believe that each one will have its own process.

Paul said

Hi Do you have any add-ons installed in Firefox? I believe that each one will have its own process.

Just the "Return YouTube Dislikes" extension. Other than that I just run Firefox raw.

It is quite normal to see more Firefox processes running.

  • process for the main Firefox thread (user interface)
  • one or more content processes
    you see more content processes when Fission is enabled
  • 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 and Fission Windows
    "Remote Processes" (Web Content)

You can check the about:memory and about:processes pages for info about all processes. There are several toolkit.aboutProcesses prefs in about:config to show more info. See also the about:unloads page for info about the tabs.

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.