[Bug 405479] [NEW] Firefox hangs in pages with many Youtube frames

[Danilo]

Public bug reported:

Hy.

I'm using Ubuntu 9.04, kernel 2.6.28-14-generic, 1Gb of memory, Intel
celeron CPU 2.80 Ghz and an old nVidia video card.

With Firefox, either 3.0 (default) or 3.6 beta, when I visit a page with
a lot of Youtube frames embedded (as, in example www.saynotocrack.com or
www.neatorama.com), Firefox hangs and / or slows down with weird visual
effects as you can see in attachment. Also, starting a video it glitch
(goes and stop loosing synchronism with the audio). Sometimes I need to
kill the Firefox instance...

Visiting a page with a single video embedded (i.e.
http://www.youtube.com/watch?v=FlCX02Dc31Y) all goes right, video runs
and sounds fluently without problem.

I have Shockwave Flash plugin installed (file: libflashplayer.so
Version: 10.0 r22) and no alternative flash plugins replacements on my
system.

I have set flash for using hardware acceleration (but even without it
the problem persists) and I have set it for using 10 Mb of local cache.

Step for reproduce it:
- goto www.saynotocrack.com or www.neatorama.com or to a site with a lot of Youtube video embedded in a single page
- scroll down and up the page, all goes slow or hangs
- start a video, poor synchronism

What I expected to happen:
- All goes fluently

Thanks for your attention.

Danilo

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New

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Firefox hangs in pages with many Youtube frames
https://bugs.launchpad.net/bugs/405479
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