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

HTML5 loads slowly using Firefox 37.01

  • 5 replies
  • 2 have this problem
  • 10 views
  • Last reply by FredMcD

more options

Anyone else noted that in Firefox 37.01 HTML5 loads annoyingly slowly and the loading keeps sticking several times: in FF36 YouTube video of 4 minutes would be loaded in few seconds, in FF37.01 it takes half the videos length before loading fully.

Anyone else noted that in Firefox 37.01 HTML5 loads annoyingly slowly and the loading keeps sticking several times: in FF36 YouTube video of 4 minutes would be loaded in few seconds, in FF37.01 it takes half the videos length before loading fully.

All Replies (5)

more options

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options)
key, and then starting Firefox. Is the problem still there?

more options

Still happens, I don't notice any difference at all.

more options

Do you have any problem with other browsers?

See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

more options

Considering this happens only with the latest version of Firefox and not on the earlier ones?

I'm back to using FF 36.04 and it works fine.

more options

That is your choice to make.