Bug#678299: iceweasel (and epiphany) freezes on certain web-sites with javascript enabled

[Olaf Till]

Package: iceweasel
Version: 3.5.16-16

Iceweasel freezes on certain web-sites if javascript is enabled,
giving the error message:

ERROR: Couldn't check percent loaded, network problems.

The same happens with epiphany, with the error messages:

** (epiphany-browser:8324): DEBUG: NP_Initialize succeeded
** (epiphany-browser:8324): DEBUG: NP_Initialize
** (epiphany-browser:8324): DEBUG: NP_Initialize succeeded
** (epiphany-browser:8324): DEBUG: NP_Initialize
** (epiphany-browser:8324): DEBUG: NP_Initialize succeeded
** (epiphany-browser:8324): DEBUG: NP_Initialize
** (epiphany-browser:8324): DEBUG: NP_Initialize succeeded
** (epiphany-browser:8324): DEBUG: NP_Initialize
** (epiphany-browser:8324): DEBUG: NP_Initialize succeeded
** (epiphany-browser:8324): DEBUG: NP_Initialize
** (epiphany-browser:8324): DEBUG: NP_Initialize succeeded
** (epiphany-browser:8324): DEBUG: NP_Initialize
** (epiphany-browser:8324): DEBUG: NP_Initialize succeeded
** (epiphany-browser:8324): DEBUG: NP_Initialize
** (epiphany-browser:8324): DEBUG: NP_Initialize succeeded
ERROR: Couldn't check percent loaded, network problems.

Note that there seem to be no general "network problems" on the
system while this happens.

I attach a tar-archive with a saved page from youtube. Loading the
main file triggers the problem for me (today) with iceweasel and
epiphany.

I am using squeeze 6.0.5, linux-2.6.32-5-amd64, libc6 2.11.3-3.