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Thanks! While that post addresses the reason why we can double the number of processes, I think I'm still missing the reason why we should double the number of

by k_sze 8y ago

Thanks! While that post addresses the reason why we can double the number of processes, I think I'm still missing the reason why we should double the number of processes (aside from performance reasons). I mean, the release notes made it sound like more processes is more stable than fewer processes (unless I'm misreading it). How does doubling the number of processes result in fewer crashes? If we manually force FF 66 to use 4 processes only, would it result in more crashes than using 8 processes?

cpeterso 8y ago
Fewer tabs running in more processes reduces the likelihood of OOM crashes, increases security (because less likely a security vulnerability will allow JavaScript on one page to read memory from another page in the same process), and might improve responsiveness because Firefox can lower the OS priority of processes that only contain background tabs.