Also check if you have opened a lot of tabs and if those tabs are loaded in the browser (active).Check if add-ons are responsible for the high memory usage.Make sure you provide detailed information as it will make debugging a lot easier. You do need to create an account on Bugzilla for that before you can report the bug.
Last but not least, you may want to report your findings to Mozilla. If you run the stable build, you may want to try beta builds to see if the memory issue has been fixed or has improved. If you are running pre-release versions of Firefox, Beta, Aurora or Nightly, then bugs may exist that cause higher than normal memory use. The last option that you can pursue is to use a different version of Firefox to see if it shows the same symptoms. This may be true for online games, sites that stream content in high quality, and sites that update regularly automatically. Some sites and services may require lots of memory.
If it does not, add-ons installed in the browser are the most likely reason for the high memory usage that you are experiencing.Īdd-ons are not the only cause for high memory usage.