How to Enable Multi-Process Tabs in Firefox

Chrome and Firefox both are great web browsers, but Firefox lags behind Chrome when it comes to speed and memory consumption. Firefox has been slower than Chrome and it uses up much more RAM than you would want it to. But now Mozilla is looking forward to fix this issue. They are going to introduce the multi-process tabs architecture in Firefox just like it exists in other browsers like Microsoft Internet Explorer and Google Chrome. With the multi-process architecture, Firefox would open each tab in a new process – making the browser more stable & resilient and less resource hungry.

At present, the release versions of Firefox do not have complete multi-process architecture, but you can download the Nightly builds of Firefox to test this new feature. It is only a matter of time when the multi-process tabs feature comes to the release versions.

If you want to enable the multi-process tabs in Firefox, then you can follow these simple steps:

  1. Open Firefox browser.
  2. Type about:config in the address bar and press Enter. You would be shown a warning about voiding of the Firefox warranty. Click on the I’ll be careful, I promise button to proceed.Multi Process Tabs in Firefox
  3. In the Search field, type browser.tabs.remote to look for the setting used for multiple tabs.
  4. Double-click on this setting browser.tabs.remote to toggle its value to true.Multi Process Tabs in Firefox
  5. That’s it. After restarting Firefox, each tab in Firefox will open in a new process. The webpage titles are shown underlined in different tabs – indicating that the tabs are running in multiple processes.


  1. Hi you have a typo in your guide.


    has an extra s in browser that shouldn’t be there.

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