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Showing results for tags 'e10s'.
You can force "multiprocess mode" (aka "e10s") in Firefox 52 or @roytam1's Serpent 52 and 55, by creating the Boolean preference browser.tabs.remote.force-enable and setting it to true. This splits Firefox or Serpent into two processes. To allow more than two, set dom.ipc.processCount to a value greater than one (i.e., setting it to 2 allows 3 processes, etc.) Don't try this in New Moon, though; it will crash! It doesn't work in BNavigator or IceApe either; setting the above preference makes it appear to work in about:support, but Windows Task Manager nevertheless shows only one task no matter how many tabs are open. Edit: Summarizing what was discovered below, this preference is required to enable e10s (multiprocess mode) in FF 52 on Windows XP. But with later Windows versions, or some other FF forks on XP (confirmed with Serpent 55), you can instead use the preferences @VistaLover recommends in the next post: toggle browser.tabs.remote.autostart from false to true, and if necessary (due to add-ons flagged as incompatible with e10s), toggle extensions.e10sBlocksEnabling from true to false. In Chrome, each tab is a separate process; but in FF the maximum number of processes is limited by that preference. If you open more tabs than that value, tabs will begin to share processes vs. creating new processes.