How to call garbage collect on firefox?

Question

I wonder if someone could guide me on some questions about GC on firefox.

1. Is possible to call the action performed when I click on the button GC using javascript?

   https://i.sstatic.net/JgoNx.png

2. on about:config there's an option javascript.options.gc_delay.full, is this option the same than clicking on the button gc on about:memory?

   https://i.sstatic.net/dimKW.png

3. I'm searching about of what of these enumerated options does, and found that:

   • Is the default amount of time to wait from the user being idle to starting a shrinking GC.

   • javascript.options.gc_delay ??

   • javascript.options.gc_delay.full ??

If someone knows the answer to these questions.

Answer 1

This is not a full answer, but is too long for Comment:

• Right-click on the GC button and select Inpect element.

• That opens the button properties, leading to the method called, doGC(), below.

  function doGC() {
    Services.obs.notifyObservers(null, "child-gc-request");
    Cu.forceGC();
    updateMainAndFooter(
      "Garbage collection completed",
      SHOW_TIMESTAMP,
      HIDE_FOOTER
    );
  }
  

To perform garbage collection, perform Cu.forceGC. This is covered in StackOverflow. Hopefully, that can get you started.