Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

High RAM usage

  • 2 fhreagra
  • 0 leis an bhfadhb seo
  • 7 views
  • Freagra is déanaí ó cor-el

more options

Hi there! Been using Firefox for more than 10 years and yesterday it started to work very slowly. I tried refreshing and restarting the computer but the problem persisted. I look at task manager and it was using 90% of my computer's memory. Naturally I looked online and tried using Firefox in Troubleshoot mode. This resolved the issue so I refreshed Firefox and disabled every add-on only to find that the problem was still there. It seems that some tabs are using too much memory almost instantly. For example, I had gmail open and it used 2gb in 1 minute.

I'm attaching some screenshots and files that may work. Would love to know how to resolve this!

Hi there! Been using Firefox for more than 10 years and yesterday it started to work very slowly. I tried refreshing and restarting the computer but the problem persisted. I look at task manager and it was using 90% of my computer's memory. Naturally I looked online and tried using Firefox in Troubleshoot mode. This resolved the issue so I refreshed Firefox and disabled every add-on only to find that the problem was still there. It seems that some tabs are using too much memory almost instantly. For example, I had gmail open and it used 2gb in 1 minute. I'm attaching some screenshots and files that may work. Would love to know how to resolve this!
Attached screenshots

All Replies (2)

more options

Post a screenshot of the performance tab, I'm curious to see what you're working with.

more options

Does the about:memory page give more detail about what takes up that 4 GB memory used by the Gmail tab ?

If it works in Troubleshoot Mode and in normal mode with all extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) disabled then try to find which extension is causing the problem by enabling one extension at a time until the problem reappears.

Close and restart Firefox after each change via one of these:

  • "3-bar" menu button -> Exit (Power button)
  • Windows: File -> Exit
  • Mac: Firefox -> Quit Firefox
  • Linux: File -> Quit