Knowing when prefetch is happening in firefox

Question

Is there any way to see when prefetching is happening in Firefox? In Chrome there is an internal task manager which shows when websites is being pre-rendered in background is there anything similar for Firefox pre-fetching?

Answer 1

One way to confirm that a resource has been prefetched by Firefox is to load the page that triggers the prefetching and then take a look at the contents of the browser cache by browsing to about:cache and clicking on List Cache Entries.

If you clear your cache just before you do that, it will be pretty obvious whether or not these resources were prefetched successfully.

Answer 2

Firefox doesn't prefetch entire sites; it only prefetches particular resources that are declared as needing prefetching or are parsed as part of a page.

There is no way to see when the prefetching is happening, though one could be added. What's the use case?