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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
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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

Wót Rogério Madureira změnjony

Wšykne wótegrona (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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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 Pšašaŕ
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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...