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!

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.

FF health report shows 13 extensions but I only have 5.Could this be a reason why my FF is using so much ram?

ap001
ap001
more options

Hi FF version 55.0.3 is using an excessive amount of ram on my iMac (7 of the 8GB) & my iMac has slowed down considerably.I've tried making adjustments in about:config & did a fresh install but nothing has helped. I checked the health report & it claims that I am using 13 extensions when i am only using 5.I thought this could be the issue as extensions can use up ram but I disabled all 5 extensions & it's still using allot of ram.Why would it show 13 extensions when I'm only using 5,could this be the reason why it's using so much ram? Thnx

Hi FF version 55.0.3 is using an excessive amount of ram on my iMac (7 of the 8GB) & my iMac has slowed down considerably.I've tried making adjustments in about:config & did a fresh install but nothing has helped. I checked the health report & it claims that I am using 13 extensions when i am only using 5.I thought this could be the issue as extensions can use up ram but I disabled all 5 extensions & it's still using allot of ram.Why would it show 13 extensions when I'm only using 5,could this be the reason why it's using so much ram? Thnx

All Replies (3)

FredMcD
FredMcD
more options

Discovered Hidden Add-on On Firefox. How To Check Yours https://support.mozilla.org/en-US/forums/support-forum-contributors/711335

Type chrome://mozapps/content/extensions/extensions.xul?<enter> in the address bar.

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Before panicking, check the Troubleshooting Information page and count the number of "Firefox Features" listed in the table above "Extensions." The Health Report counts the extensions that create those features even though other parts of Firefox's interface do not show them as extensions.

  • "3-bar" menu button > "?" button > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter

Scroll down past the Basic Information table...

Unfortunately, this table doesn't show when one of the feature-extensions is disabled and therefore not counted on the Health Report. For example, I disabled Pocket and there's no way to see that on this page in Firefox 55. (Disable or re-enable Pocket for Firefox)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Also, more generally, there is this help article, in case you didn't already work through it: Firefox uses too much memory or CPU resources - How to fix.

In my experience, scrolling through the Facebook news feed uses a ton of memory, because Firefox feels the need to keep all of the text and a lot of the media from the page in memory as long as the tab is open, and it just keeps fetching more and more...