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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Firefox don't use free mem

  • 1 reply
  • 1 has this problem
  • 6 views
  • Last reply by Terry

A-l-exa-n-d-r
A-l-exa-n-d-r
more options

I have more than 100 tabs and more than 1k open in the background (the tab is downloaded from the previous session, but not open). When opening / closing the FF tabs, it gradually uses up to 18-20GB. When this limit is reached, friezes begin, the tabs open slowly. Memory busy FF is released ~2GB, after that it starts to load pages. According to symptoms, it looks like a shortage of RAM. But I have 64GB RAM, reserve (Win) 17GB, free 15GB. And more is 9GB SWOP on SSD, 136GB of free space on SSD and 1TB+ free space on HDD (RAID0), 200+ MB / sec internet . Where and what to change to ff used accessible resources? After all, they exist!

I have more than 100 tabs and more than 1k open in the background (the tab is downloaded from the previous session, but not open). When opening / closing the FF tabs, it gradually uses up to 18-20GB. When this limit is reached, friezes begin, the tabs open slowly. Memory busy FF is released ~2GB, after that it starts to load pages. According to symptoms, it looks like a shortage of RAM. But I have 64GB RAM, reserve (Win) 17GB, free 15GB. And more is 9GB SWOP on SSD, 136GB of free space on SSD and 1TB+ free space on HDD (RAID0), 200+ MB / sec internet . Where and what to change to ff used accessible resources? After all, they exist!
Attached screenshots

All Replies (1)

Terry
Terry
more options

This article may help: https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-or-cpu-resources