We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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 hanging when the page scrolls down to a html5 video or the page to a slideshow with fade effect

Rogério Madureira
Rogério Madureira
more options

Every time a page has a html5 video or a slideshow with fade effect Firefox 3.6 becomes terriblely slow. It freezes with this test: http://demos.hacks.mozilla.org/openweb/HWACCEL/

I have Fedora 14 and before that Fedora 13 and the problem happens with both.

The same doesn't happen on Opera or Google Chrome.

UPDATE 1: I have already tryed the Safe Mode and the problem happens the same.

UPDATE 2: This page full of videos scroll smothly without any problemas: http://brettgaylor.tumblr.com/tagged/webmademovies

Every time a page has a html5 video or a slideshow with fade effect Firefox 3.6 becomes terriblely slow. It freezes with this test: http://demos.hacks.mozilla.org/openweb/HWACCEL/ I have Fedora 14 and before that Fedora 13 and the problem happens with both. The same doesn't happen on Opera or Google Chrome. '''UPDATE 1''': I have already tryed the Safe Mode and the problem happens the same. '''UPDATE 2:''' This page full of videos scroll smothly without any problemas: http://brettgaylor.tumblr.com/tagged/webmademovies

Modified by Rogério Madureira

All Replies (2)

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

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See:

Rogério Madureira
Rogério Madureira Question owner
more options

I forgot to say that I did tryed the Safe Mode just to see if the slow was not being caused by some extension or plugin. However the result was all the same. By the way, the slow happens even if there is only one page opened. I am not thinking it is something related to the ATI video card or even Fedora because the same slow does't happen in Chrome and Opera...