Have you ever noticed that sometimes Firefox isn’t very responsive while loading a page?

As a frequent StumbleUpon user, this behavior grates on my nerves so I went looking for a solution.

There’s also a lower priority mode that interrupts the parser more often to respond to input events.

Tweak Firefox’s "Responsiveness" Config Setting

It’s even documented atMozillazine.

Use these values when prompted:

The default value is 750000, or 3/4 of a second.

You could reverse this if you were more worried about speeding up page load time.

Note that this setting only works if you haven’t changed content.interrupt.parsing to false.