browsers close periodically - very upsetting

[TJ Sutfin]

having problems opening web browsers. some pages won't open and after a few seconds, the browser will close. Not all browsers or web site do this (about 25%) please help!

Ubuntu 8.04

ProblemType: Bug
Architecture: lpia
Date: Fri Apr 13 19:22:34 2012
DistroRelease: Ubuntu 8.04
NonfreeKernelModules: wl
Package: firefox 3.6.17+build3+nobinonly-0ubuntu0.8.04.1netbook0belmont4
PackageArchitecture: lpia
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: firefox-3.0
Uname: Linux 2.6.24-29-lpia i686
UnreportableReason: This is not a genuine Ubuntu package