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!

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 crashes, usually on video content

  • 1 reply
  • 2 have this problem
  • 3 views
  • Last reply by cor-el

Crasgard
Crasgard
more options

I did everything they recommend on the support page (safe mode, reinstall etc.) but my Firefox 55.0.3 still keeps constantly crashing on Video content. Youtube, etc.

here is the crash report:

df6ba32f-6f0e-4f1c-990b-94f640170908 https://crash-stats.mozilla.com/report/index/df6ba32f-6f0e-4f1c-990b-94f640170908#tab-details

I did everything they recommend on the support page (safe mode, reinstall etc.) but my Firefox 55.0.3 still keeps constantly crashing on Video content. Youtube, etc. here is the crash report: df6ba32f-6f0e-4f1c-990b-94f640170908 https://crash-stats.mozilla.com/report/index/df6ba32f-6f0e-4f1c-990b-94f640170908#tab-details

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

That is a problem with the Shockwave Flash plugin.

See:

YouTube would normally use the HTML5 media player and not the Flash plugin.

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window