See Where Your Firefox Memory Is Going

It is a well known fact that Firefox can consume quite a bit of memory during normal usage. If you are so inclined to see where/how this memory is being used, simply visit the following URL:

about:memory

This works in the newer versions of Firefox and shows, in great detail, the breakdown behind the usage. If you are curious about what a certain column means, you can Google it for a quick answer.

The main number to look at is the top value "Memory mapped" which is the amount of memory (physical + virtual) which Firefox is using. This value will match the "Commit Size" in Windows Task Manager.

Opt In Image
Free Weekly PCMech Newsletter
Almost 500 Issues So Far, Received By Thousands Every Week.

The PCMech.com weekly newsletter has been running strong for over 8 years. Sign up to get tech news, updates and exclusive content - right in your inbox. Also get (several) free gifts.

Comments

  1. Richard says:

    I have some dirty memory! How does Firefox know what websites are ‘dirty’ and what are websites are not! ;-)

  2. Thanks for the link. It is quite useful.

Leave a Reply

PCMech Insider Cover Images - Subscribe To Get Your Copies!
Learn More
Tech Information you can use, sent to your inbox each and every week. Check out PCMech's digital e-zine...