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 is slow and stutters

  • 3 replies
  • 2 have this problem
  • 2 views
  • Last reply by FredMcD

HASnLA
HASnLA
more options

I've been seeing this problem since last year and I'm about ready to switch to another browser because of it. Firefox stutters when it opens some websites, and I think the problem has to do with self-starting videos and video ads that appear on those sites. For example, the NY Times (nytimes.com) now routinely places video ads near the top of its home page, which I think causes that webpage to jump up and down as the browser loads the ad. This even happens when I open a new tab from a link on the nytimes.com homepage, and then return to the homepage. The page appears to refreshe automatically, as does the video ad, even though I only clicked on the tab to return to the homepage, not actually do anything on it.

A bit of this happens with Safari when I first open nytimes.com, but it is not nearly as bad. I'd like to stick with Firefox, but all this jumping around is ruining my experience. Is there a fix?

I've been seeing this problem since last year and I'm about ready to switch to another browser because of it. Firefox stutters when it opens some websites, and I think the problem has to do with self-starting videos and video ads that appear on those sites. For example, the NY Times (nytimes.com) now routinely places video ads near the top of its home page, which I think causes that webpage to jump up and down as the browser loads the ad. This even happens when I open a new tab from a link on the nytimes.com homepage, and then return to the homepage. The page appears to refreshe automatically, as does the video ad, even though I only clicked on the tab to return to the homepage, not actually do anything on it. A bit of this happens with Safari when I first open nytimes.com, but it is not nearly as bad. I'd like to stick with Firefox, but all this jumping around is ruining my experience. Is there a fix?

Chosen solution

Flash block {web link} Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on it

Adblock Plus {web link} Blocks annoying video ads on YouTube, Facebook ads, banners and much more. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Adblock Plus Pop-up Addon {web link} Adblock Plus Pop-up Addon extends the blocking functionality of Adblock Plus to those annoying pop-up windows that open on mouse clicks and other user actions.

Forum; Adblock Plus Homepage {web link}

Read this answer in context 👍 1

All Replies (3)

FredMcD
FredMcD
more options

Chosen Solution

Flash block {web link} Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on it

Adblock Plus {web link} Blocks annoying video ads on YouTube, Facebook ads, banners and much more. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Adblock Plus Pop-up Addon {web link} Adblock Plus Pop-up Addon extends the blocking functionality of Adblock Plus to those annoying pop-up windows that open on mouse clicks and other user actions.

Forum; Adblock Plus Homepage {web link}

HASnLA
HASnLA Question owner
more options

Thanks Fred. I have AdBlock on Firefox but for some reason I don't remember, I had disabled it on NYTimes.com. Enabled it and solved the issue -- for now! Thanks again!

FredMcD
FredMcD
more options

Glad to help. Safe Surfing.

Hello,

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily.

Thank you for contacting Mozilla Support.