How many Firefox processes should be running?

Why does Firefox have multiple processes running?

Firefox splits into multiple processes for performance and security boosts. … Firefox splits into multiple processes for performance and security boosts. For example, the main program will be a process, then the tab that you have open will be a process and add-ons will be in another process, etc.

Why are there 9 Firefox processes running?

This is normal. For some time now, Firefox has been using a feature called multiprocessing. Many other programs use the same approach. Rather than running everything in a single Firefox process, the various parts of Firefox are split into different processes.

How do I limit the number of processes in Firefox?

You can reduce the number of content processes if your computer is running out of memory.1In the Menu bar at the top of the screen, click Firefox and select Preferences. ... 2In the General panel, go down to the Performance section.Firefox's performance settings - Mozilla Support

How do I turn off multiple processes in Firefox?

Disabling e10s or multi-process in Firefox1Right-click on My Computer icon on the desktop, select properties or open run dialog and type “sysdm.cpl” and press enter.2Click Advanced System Settings,3Click Environment Variables.4Under User Variables, click on New and enter variable name and value as below.Multi-Process (e10s) can still be disabled in Firefox 68 or later ...