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.

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

Some videos do not appear

  • 4 replies
  • 1 has this problem
  • 44 views
  • Last reply by FredMcD

more options

Hi,

I have FF 60.0.2 in Windows 7 and some videos on some web pages do not appear. They appear in other browsers and in FF when in Safe mode. Those videos are YT videos.

I unsuccessfully tried to: - Disable all addons and hardware acceleration - Update my graphic driver and Flash

What can I do? Thank you!

Hi, I have FF 60.0.2 in Windows 7 and some videos on some web pages do not appear. They appear in other browsers and in FF when in Safe mode. Those videos are YT videos. I unsuccessfully tried to: - Disable all addons and hardware acceleration - Update my graphic driver and Flash What can I do? Thank you!

Chosen solution

I solved my problem by deleting the prefs.js in the Profiles folder. I relaunched FF and the videos appeared.

Read this answer in context 👍 0

All Replies (4)

more options

jgmouton said

Disable all addons and hardware acceleration

Are you sure everything was disabled?

https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode

Safe Mode is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes). If the problem goes away, that tells us one thing. If it does not, that tells us something else.

more options

Yes I am sure. All addons disabled and graphics acceleration disabled.

more options

Chosen Solution

I solved my problem by deleting the prefs.js in the Profiles folder. I relaunched FF and the videos appeared.

more options

That was very good work. Well done.