We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Why Firefox 3.6.13 is extremely slow and occupies so much memory?

  • 4 replies
  • 129 have this problem
  • 37 views
  • Last reply by cor-el

more options

Why Firefox 3.6.13 is extremely slow and occupies so much memory? This is the worst firefox version ever made... Useing over 120 MB of memory, even over 220 MB of RAM... and even more if you really want to explore some pages...

Why Firefox 3.6.13 is extremely slow and occupies so much memory? This is the worst firefox version ever made... Useing over 120 MB of memory, even over 220 MB of RAM... and even more if you really want to explore some pages...

All Replies (4)

more options

I'm a computer master... what do you have to say?!

more options

And I'm not a liar !! See the image with the proove....

more options

Sorry, this isn't Instant Messaging. You may have to wait more than 10 minutes to get an answer.

Depending upon how much total RAM you have installed and the content of the pages that are loaded, 272,896K isn't all that bad.

more options

See the about:memory page (open that page via the location bar like a website)

Firefox keeps the content of currently open web pages in memory and websites that have a lot of images can take a lot of memory to store the uncompressed images.