Fresh boot, one instance of Firefox, one tab of Firefox, 15 processes of Firefox. Really?!
Fresh boot, one instance of Firefox, one tab of Firefox, 15 processes of Firefox. Really?!
Sometimes one or more of these processes hogs my CPU.
I've looked at many suggestions online and either they are inaccurate, inapplicable, or they don't fix the problem.
All Replies (2)
That number of processes seems normal. There are several relevant about pages: about:memory, about:performance (task manager) and about:processes. You could opt out of the fission experiment but that is unlikely to make a difference.
https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-or-cpu-resources https://wiki.mozilla.org/Project_Fission
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
There are several toolkit.aboutProcesses prefs on the about:config page to show more info. You can find the current multi-process state on the Troubleshooting Information page (about:support).
- "Help -> Troubleshooting Information"
"Application Basics":<be>Multiprocess Windows and Fission Windows
"Remote Processes" (Web Content)
See the about:memory and about:processes pages for info about all processes. See the about:unloads page for info about the tabs.