


So, once Firefox is updated to 54, the bulk of Firefox installations with multi-process enabled, will use four content processes instead of just one.įirefox users may set the number of content processes manually ( read all there is to know about multi-process Firefox in our guide) Mozilla picked four content processes as the default for the switch.

Firefox won't do that, and the main reason why is that it impacts performance and memory use too much. Still good in terms of reliability of the browser as the browser ui is running in a separate process, but not as good as separating these into multiple content processes.Ĭhrome for instance uses one process per site. What this means is that all websites and services open in Firefox at any time use the same content process.
