[Bug 250933] [NEW] firefox halts system when visiting specific website

[Jakob Breier]

Public bug reported:

Every time I visit brightcreative.com my system halts for about a minute
(I can only move the mouse). Xorg seems to use 100% CPU time of one of
my cores at this time (top isn't very responsive as well). Last time I
switched with [ctrl][alt][F1] my x server crashed and restarted.

This is the output firefox produced from startup to shutdown:
/usr/share/themes/Blubuntu/gtk-2.0/gtkrc:169: Clearlooks configuration option "progressbarstyle" is not supported and will be ignored.
/usr/share/themes/Blubuntu/gtk-2.0/gtkrc:169: Clearlooks configuration option "progressbarstyle" is not supported and will be ignored.
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)

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

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firefox halts system when visiting specific website
https://bugs.launchpad.net/bugs/250933
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