FF in various Ubuntu and Win installations seems to hang up, when I try to open (url in bug description)

[M]

*** WARNING - browsing to following URL may cause intense disk activity ***

http://mwiacek.com/www/sites/default/files/x9.htm seems to hang up FF in Ubuntu (details attached) and some win7/win xp machines

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: firefox 11.0+build1-0ubuntu0.11.10.1
ProcVersionSignature: Ubuntu 3.0.0-17.30-generic 3.0.22
Uname: Linux 3.0.0-17-generic i686
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: dsdsdsdffsdfsdf 1241 F.... pulseaudio
BuildID: 20120310010446
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0804000 irq 5'
   Mixer name : 'SigmaTel STAC9221 A1'
   Components : 'HDA:83847680,83847680,00103401'
   Controls : 20
   Simple ctrls : 12
Channel: release
Date: Sun Apr 1 00:17:09 2012
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
IpRoute:
 default via 10.0.2.2 dev eth0 proto static
 10.0.2.0/24 dev eth0 proto kernel scope link src 10.0.2.15 metric 1
 169.254.0.0/16 dev eth0 scope link metric 1000
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
Plugins:
 Shockwave Flash - Lib=libflashplayer.so, Location=/usr/lib/flashplugin-installer
 Windows Media Player Plug-in 10 (compatible; Totem) - Lib=libtotem-gmp-plugin.so, Location=/usr/lib/mozilla/plugins
 QuickTime Plug-in 7.6.6 - Lib=libtotem-narrowspace-plugin.so, Location=/usr/lib/mozilla/plugins
 DivX® Web Player - Lib=libtotem-mully-plugin.so, Location=/usr/lib/mozilla/plugins
 VLC Multimedia Plugin (compatible Totem 3.0.1) - Lib=libtotem-cone-plugin.so, Location=/usr/lib/mozilla/plugins
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=11.0/20120310010446 (Running)
RfKill:

RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: Upgraded to oneiric on 2012-02-09 (51 days ago)
dmi.bios.date: 12/01/2006
dmi.bios.vendor: innotek GmbH
dmi.bios.version: VirtualBox
dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:
dmi.product.name: VirtualBox
dmi.product.version: 1.2
dmi.sys.vendor: innotek GmbH

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Paul White (paulw2u)]

M, I'm reviewing old untouched Firefox bug reports and came across this one. I went to the page that you referred to, which is obviously on your own website, using Ubuntu 18.04 and Firefox 61.0.1 and my PC was virtually disabled by intense disk activity. I managed to regain control of it my logging in remotely and forcing a reboot. NoScript protected me when Firefox restarted and tried to reopen the page.

What is on that page? Can you provide some details and/or a screenshot? Have you tested in other browsers on Ubuntu? Are any other Linux distributions affected? Have you changed the page since you raised this bug report to reduce or eliminate the problem?

[Paul White (paulw2u)]

M, added source of x9.htm as an attachment.
Seems to include a script but what is its purpose?
Marking "Incomplete" awaiting a reply.

[Launchpad Janitor (janitor)]

[Expired for firefox (Ubuntu) because there has been no activity for 60 days.]