Firefox + SeaMonkey (gecko browsers) instant crash on some web pages

[Miroslav Lachman]

Hi,

for a few month I am getting instant crash on webs like www.seznam.cz, 
www.mapy.cz. I thing this is due to sharing the same javascript files.
The browser does not crash if I have JavaScript disabled.
It crashes old Firefox 35 same as new Firefox 40. I tested SeaMonkey
2.32 too.
It works in Windows version of these browsers.

Can somebody look at this problem and found some fix?

Miroslav Lachman

 > uname -srmi
FreeBSD 10.1-RELEASE-p16 amd64 GENERIC + GNOME 3.14