Firefox 96, Lots Of Sub-Processes

[cosmo1957]

Hi,
Window 10, Firefox 96.0.2

When I first open Firefox with one tab, Firefox has 10 or more sub-processes running.
Some use no CPU, but others are consuming a few percent.

For some unknown reasons, Firefox also produces a few Background Processes, which come and go.

Firefox seems to be getting sluggish, doing nothing in particular.

Why are there so many processes running ?

Thanks in advance.

[DanRaisch]

Does the same thing happen if you launch the application in Mozilla Trouble Shooting Mode? https://support.mozilla.org/en-US/kb/di ... shoot-mode

[morat]

Do you have fission enabled?

More info: http://forums.mozillazine.org/viewtopic ... #p14911089

[cosmo1957]

Do you have fission enabled?

More info: http://forums.mozillazine.org/viewtopic ... #p14911089

Yes,
fission.autostart = true.

Disabled = Allow Firefox to send technical and interaction data to Mozilla
Disabled = Allow Firefox to install and run studies

[Ed1]

After reading this article, I don't think I would want to disable Fission:

https://hacks.mozilla.org/2021/05/intro ... hitecture/

The extra processes seem to be there for a good reason.

[morat]

@Ed1

Most users on the release build have the fission pref disabled.

Enable Fission pref by default in Firefox 97
http://bugzilla.mozilla.org/show_bug.cgi?id=1732358

I dislike being a guinea pig so I disallow running studies.

Tools > Settings > Privacy & Security > Firefox Data Collection and Use

[uncheck] Allow Firefox to install and run studies

[Ed1]

I have one computer with Firefox 96.0.2 release and another with Firefox 97 beta 6. Fission autostart preference is TRUE on both. Not sure if I changed it manually on Firefox 96.

I have set Data Collection and Use OFF and Install and Run Studies OFF on both.

Fission seems like a good idea (unless I am missing something), so I am happy with these settings.