Public bug reported:

Binary package hint: firefox

On 64-bit Ubuntu 8.10/Intrepid, Firefox hangs for extended periods when
using iPaper on scribd.  It appears to be related to the use of
Javascript with the flash plugin.  However, KDE4's Konqueror works fine
using the same flash plugin as Firefox.

To reproduce:
0. Load firefox
1. Visit http://www.scribd.com/doc/6790006/18
2. If the page loads successfully, try moving backward and forward through the 
iPaper document's pages
3. If that doesn't cause Firefox to hang, open the iPaper menu at the top-left 
of the document box in the center of the page
4. At some point between steps 1-3, Firefox will hang (and "gray out" if Compiz 
is enabled).

Eventually, the document (and flash applet) will disappear (replaced by
a gray rectangle), and Firefox will begin responding again.

Some additional info:
$ lsb_release -rd
Description:    Ubuntu 8.10
Release:        8.10

$ dpkg -l flashplugin-nonfree
ii  flashplugin-nonfree                 10.0.12.36ubuntu1                   
Adobe Flash Player plugin installer

$ dpkg -l firefox
ii  firefox                             3.0.4+nobinonly-0ubuntu0.8.10.1     
meta package for the popular mozilla web browser

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

** Description changed:

  Binary package hint: firefox
  
  On 64-bit Ubuntu 8.10/Intrepid, Firefox hangs for extended periods when
  using iPaper on scribd.  It appears to be related to the use of
  Javascript with the flash plugin.  However, KDE4's Konqueror works fine
  using the same flash plugin as Firefox.
  
  To reproduce:
  0. Load firefox
  1. Visit http://www.scribd.com/doc/6790006/18
- 2. If the page loads successfully, try moving backward and forward through 
the pages
- 3. If that doesn't cause the program to hang, open the iPaper menu at the 
top-left of the document box in the center of the page
+ 2. If the page loads successfully, try moving backward and forward through 
the iPaper document's pages
+ 3. If that doesn't cause Firefox to hang, open the iPaper menu at the 
top-left of the document box in the center of the page
  4. At some point between steps 1-3, Firefox will hang (and "gray out" if 
Compiz is enabled).
  
  Eventually, the document (and flash applet) will disappear (replaced by
  a gray rectangle), and Firefox will begin responding again.
  
  Some additional info:
  $ lsb_release -rd
  Description:  Ubuntu 8.10
  Release:      8.10
  
  $ dpkg -l flashplugin-nonfree
  ii  flashplugin-nonfree                 10.0.12.36ubuntu1                   
Adobe Flash Player plugin installer
  
  $ dpkg -l firefox
  ii  firefox                             3.0.4+nobinonly-0ubuntu0.8.10.1     
meta package for the popular mozilla web browser

-- 
Firefox 3 hangs when using iPaper on scribd
https://bugs.launchpad.net/bugs/307354
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