Hundreds of Firefox PIDs. What's that all about? (htop)


What are all of these Firefox processes (from PID 2862)? There are 79 of them.

And there are over 100 of these, with different childID numbers:

These are threads, not processes I think? Have you configured htop to group threads belonging to one process?

I don’t think so. I just ran it.

Anyway, number of processes Firefox spawns is configurable in Firefox settings. By default it opens a lot of processes, depending on your CPU cores number, to improve security and performance.

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Okay. Thank you.
I’ll mark your answer as the solution.

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