FIREFOX Very unstable

What is the output of:

uname -a; lsb_release -a; apt-cache policy firefox

Thanks

dick@dick-GateWay-M210-and-3500-Series:~$ uname -a; lsb_release -a; apt-cache policy firefox
Linux dick-GateWay-M210-and-3500-Series 3.2.0-38-generic #61-Ubuntu SMP Tue Feb 19 12:20:02 UTC 2013 i686 i686 i386 GNU/Linux
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.2 LTS
Release: 12.04
Codename: precise
firefox:
  Installed: 19.0+build1-0ubuntu0.12.04.2
  Candidate: 19.0.2+build1-0ubuntu0.12.04.1
  Version table:
     19.0.2+build1-0ubuntu0.12.04.1 0
        500 http://security.ubuntu.com/ubuntu/ precise-security/main i386 Packages
        500 http://archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages
        500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages
 *** 19.0+build1-0ubuntu0.12.04.2 0
        100 /var/lib/dpkg/status
     11.0+build1-0ubuntu4 0
        500 http://archive.ubuntu.com/ubuntu/ precise/main i386 Packages
        500 http://us.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
dick@dick-GateWay-M210-and-3500-Series:~$

How did you install the browser. Seems it has no source. Did you install it using deb files....

continued in question https://answers.launchpad.net/ubuntu/+question/224499

I installed all software through the program updater software. I wouldn't know what a "deb" is or how to use it.

I suggest you run:

sudo apt-get --purge remove firefox
sudo apt-get --purge autoremove
sudo apt-get clean
sudo apt-get update
sudo apt-get install firefox

Hope that helps

Here's the results for the above commands. Firefox wouldn't startup after running them. I restarted ubuntu and package updater started up and downloaded 10 fixes and updates. I haven't had any system errors this time so maybe it done the trick.
I'll wait a few days to see if my problem has been fixed.

sudo apt-get --purge remove firefox
sudo apt-get --purge autoremove
sudo apt-get clean
sudo apt-get update
sudo apt-get install firefox

dick@dick-GateWay-M210-and-3500-Series:~$ sudo apt-get --purge remove firefox
[sudo] password for dick:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following package was automatically installed and is no longer required:
  libunity6
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
  firefox* firefox-globalmenu* firefox-gnome-support*
0 upgraded, 0 newly installed, 3 to remove and 3 not upgraded.
2 not fully installed or removed.
After this operation, 50.8 MB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 192273 files and directories currently installed.)
Removing firefox-gnome-support ...
Removing firefox-globalmenu ...
Removing firefox ...
Purging configuration files for firefox ...
Processing triggers for man-db ...
Processing triggers for bamfdaemon ...
Rebuilding /usr/share/applications/bamf.index...
Processing triggers for desktop-file-utils ...
Processing triggers for gnome-menus ...
Setting up update-notifier-common (0.119ubuntu8.6) ...
flashplugin-installer: downloading http://archive.canonical.com/pool/partner/a/adobe-flashplugin/adobe-flashplugin_11.2.202.275.orig.tar.gz
Installing from local file /tmp/tmp5jsNoY.gz
Flash Plugin installed.
Setting up flashplugin-installer (11.2.202.275ubuntu0.12.04.1) ...
dick@dick-GateWay-M210-and-3500-Series:~$ sudo apt-get --purge autoremove
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
  libunity6*
0 upgraded, 0 newly installed, 1 to remove and 3 not upgraded.
After this operation, 541 kB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 192153 files and directories currently installed.)
Removing libunity6 ...
Purging configuration files for libunity6 ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
dick@dick-GateWay-M210-and-3500-Series:~$ sudo apt-get clean
dick@dick-GateWay-M210-and-3500-Series:~$ sudo apt-get update
Get:1 http://security.ubuntu.com precise-security Release.gpg [198 B]
Get:2 http://security.ubuntu.com precise-security Release [49.6 kB]
Hit http://archive.ubuntu.com precise Release.gpg
Get:3 http://archive.ubuntu.com precise-updates Release.gpg [198 B]
Hit http://us.archive.ubuntu.com precise Release.gpg
Get:4 http://us.archive.ubuntu.com precise-updates Release.gpg [198 B]
Hit http://extras.ubuntu.com precise Release.gpg
Hit http://us.archive.ubuntu.com precise Release
Hit http://archive.ubuntu.com precise Release
Hit http://extras.ubuntu.com precise Release
Get:5 http://us.archive.ubuntu.com precise-updates Release [49.6 kB]
Get:6 http://archive.ubuntu.com precise-updates Release [49.6 kB]
Get:7 http://security.ubuntu.com precise-security/main Sources [64.3 kB]
Hit http://extras.ubuntu.com precise/main Sources
Hit http://extras.ubuntu.com precise/main i386 Packages
Ign http://extras.ubuntu.com precise/main TranslationIndex
Hit http://us.archive.ubuntu.com precise/main Sources
Hit http://us.archive.ubuntu.com precise/restricted Sources
Hit http://us.archive.ubuntu.com precise/universe Sources
Hit http://us.archive.ubuntu.com precise/multiverse Sources
Hit http://us.archive.ubuntu.com precise/main i386 Packages
Hit http://us.archive.ubuntu.com precise/restricted i386 Packages
Hit http://us.archive.ubuntu.com precise/universe i386 Packages
Hit http://us.archive.ubuntu.com precise/multiverse i386 Packages
Hit http://us.archive.ubuntu.com precise/main TranslationIndex
Hit http://us.archive.ubuntu.com precise/multiverse TranslationIndex
Hit http://archive.ubuntu.com precise/main Sources
Hit http://archive.ubuntu.com precise/restricted Sources
Hit http://archive.ubuntu.com precise/main i386 Packages
Hit http://archive.ubuntu.com precise/restricted i386 Packages
Hit http://archive.ubuntu.com precise/main TranslationIndex
Hit http://archive.ubuntu.com precise/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise/universe TranslationIndex
Get:8 http://us.archive.ubuntu.com precise-updates/main Sources [370 kB]
Get:9 http://archive.ubuntu.com precise-updates/main Sources [370 kB]
Get:10 http://security.ubuntu.com precise-security/restricted Sources [1,950 B]
Get:11 http://security.ubuntu.com precise-security/universe Sources [22.6 kB]
Ign http://extras.ubuntu.com precise/main Translation-en_US
Ign http://extras.ubuntu.com precise/main Translation-en
Get:12 http://security.ubuntu.com precise-security/multiverse Sources [1,380 B]
Get:13 http://security.ubuntu.com precise-security/main i386 Packages [243 kB]
Get:14 http://archive.ubuntu.com precise-updates/restricted Sources [5,120 B]
Get:15 http://archive.ubuntu.com precise-updates/main i386 Packages [600 kB]
Get:16 http://archive.ubuntu.com precise-updates/restricted i386 Packages [9,505 B]
Get:17 http://archive.ubuntu.com precise-updates/main TranslationIndex [3,564 B]
Get:18 http://archive.ubuntu.com precise-updates/restricted TranslationIndex [2,461 B]
Hit http://archive.ubuntu.com precise/main Translation-en
Hit http://archive.ubuntu.com precise/restricted Translation-en
Hit http://archive.ubuntu.com precise-updates/main Translation-en
Hit http://archive.ubuntu.com precise-updates/restricted Translation-en
Get:19 http://us.archive.ubuntu.com precise-updates/restricted Sources [5,120 B]
Get:20 http://us.archive.ubuntu.com precise-updates/universe Sources [82.7 kB]
Get:21 http://security.ubuntu.com precise-security/restricted i386 Packages [3,968 B]
Get:22 http://security.ubuntu.com precise-security/universe i386 Packages [70.5 kB]
Get:23 http://us.archive.ubuntu.com precise-updates/multiverse Sources [4,746 B]
Get:24 http://us.archive.ubuntu.com precise-updates/main i386 Packages [600 kB]
Get:25 http://security.ubuntu.com precise-security/multiverse i386 Packages [2,369 B]
Get:26 http://security.ubuntu.com precise-security/main TranslationIndex [74 B]
Get:27 http://security.ubuntu.com precise-security/multiverse TranslationIndex [71 B]
Get:28 http://security.ubuntu.com precise-security/restricted TranslationIndex [71 B]
Get:29 http://security.ubuntu.com precise-security/universe TranslationIndex [73 B]
Hit http://security.ubuntu.com precise-security/main Translation-en
Hit http://security.ubuntu.com precise-security/multiverse Translation-en
Hit http://security.ubuntu.com precise-security/restricted Translation-en
Hit http://security.ubuntu.com precise-security/universe Translation-en
Get:30 http://us.archive.ubuntu.com precise-updates/restricted i386 Packages [9,505 B]
Get:31 http://us.archive.ubuntu.com precise-updates/universe i386 Packages [191 kB]
Get:32 http://us.archive.ubuntu.com precise-updates/multiverse i386 Packages [10.4 kB]
Get:33 http://us.archive.ubuntu.com precise-updates/main TranslationIndex [3,564 B]
Get:34 http://us.archive.ubuntu.com precise-updates/multiverse TranslationIndex [2,605 B]
Get:35 http://us.archive.ubuntu.com precise-updates/restricted TranslationIndex [2,461 B]
Get:36 http://us.archive.ubuntu.com precise-updates/universe TranslationIndex [2,850 B]
Hit http://us.archive.ubuntu.com precise/main Translation-en
Hit http://us.archive.ubuntu.com precise/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise/restricted Translation-en
Hit http://us.archive.ubuntu.com precise/universe Translation-en
Hit http://us.archive.ubuntu.com precise-updates/main Translation-en
Hit http://us.archive.ubuntu.com precise-updates/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise-updates/restricted Translation-en
Hit http://us.archive.ubuntu.com precise-updates/universe Translation-en
Fetched 2,834 kB in 18s (153 kB/s)
Reading package lists... Done
dick@dick-GateWay-M210-and-3500-Series:~$ sudo apt-get install firefox
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  firefox-globalmenu
Suggested packages:
  latex-xft-fonts firefox-gnome-support
The following NEW packages will be installed:
  firefox firefox-globalmenu
0 upgraded, 2 newly installed, 0 to remove and 7 not upgraded.
Need to get 24.0 MB of archives.
After this operation, 50.7 MB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 http://security.ubuntu.com/ubuntu/ precise-security/main firefox i386 19.0.2+build1-0ubuntu0.12.04.1 [24.0 MB]
Get:2 http://security.ubuntu.com/ubuntu/ precise-security/main firefox-globalmenu i386 19.0.2+build1-0ubuntu0.12.04.1 [50.2 kB]
Fetched 24.0 MB in 6min 6s (65.5 kB/s)
Selecting previously unselected package firefox.
(Reading database ... 192148 files and directories currently installed.)
Unpacking firefox (from .../firefox_19.0.2+build1-0ubuntu0.12.04.1_i386.deb) ...
Selecting previously unselected package firefox-globalmenu.
Unpacking firefox-globalmenu (from .../firefox-globalmenu_19.0.2+build1-0ubuntu0.12.04.1_i386.deb) ...
Processing triggers for bamfdaemon ...
Rebuilding /usr/share/applications/bamf.index...
Processing triggers for desktop-file-utils ...
Processing triggers for gnome-menus ...
Processing triggers for man-db ...
Setting up firefox (19.0.2+build1-0ubuntu0.12.04.1) ...
update-alternatives: using /usr/bin/firefox to provide /usr/bin/gnome-www-browser (gnome-www-browser) in auto mode.
update-alternatives: using /usr/bin/firefox to provide /usr/bin/x-www-browser (x-www-browser) in auto mode.
Please restart all running instances of firefox, or you will experience problems.
Setting up firefox-globalmenu (19.0.2+build1-0ubuntu0.12.04.1) ...
dick@dick-GateWay-M210-and-3500-Series:~$

Splitting your answers in two different questions https://answers.launchpad.net/ubuntu/+question/224495 and https://answers.launchpad.net/ubuntu/+question/224499 makes support much harder than necessary.

Please stick to one question document!

There is one package that got removed and that you should reinstall:

sudo apt-get install firefox-gnome-support

And to test if everything is now running well in your package management system (there were error messages in your other thread)please execute the following commands:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
sudo apt-get install --reinstall python2.7 update-notifier-common

and then copy/paste all output as done before

dick@dick-GateWay-M210-and-3500-Series:~$
dick@dick-GateWay-M210-and-3500-Series:~$ sudo apt-get install firefox-gnome-support
[sudo] password for dick:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  firefox-gnome-support
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 9,250 B of archives.
After this operation, 175 kB of additional disk space will be used.
Get:1 http://security.ubuntu.com/ubuntu/ precise-security/main firefox-gnome-support i386 19.0.2+build1-0ubuntu0.12.04.1 [9,250 B]
Fetched 9,250 B in 0s (18.8 kB/s)
Selecting previously unselected package firefox-gnome-support.
(Reading database ... 227260 files and directories currently installed.)
Unpacking firefox-gnome-support (from .../firefox-gnome-support_19.0.2+build1-0ubuntu0.12.04.1_i386.deb) ...
Setting up firefox-gnome-support (19.0.2+build1-0ubuntu0.12.04.1) ...
dick@dick-GateWay-M210-and-3500-Series:~$ sudo apt-get update
Hit http://security.ubuntu.com precise-security Release.gpg
Hit http://us.archive.ubuntu.com precise Release.gpg
Get:1 http://us.archive.ubuntu.com precise-updates Release.gpg [198 B]
Hit http://security.ubuntu.com precise-security Release
Hit http://archive.ubuntu.com precise Release.gpg
Get:2 http://archive.ubuntu.com precise-updates Release.gpg [198 B]
Get:3 http://extras.ubuntu.com precise Release.gpg [72 B]
Hit http://us.archive.ubuntu.com precise Release
Hit http://archive.ubuntu.com precise Release
Hit http://extras.ubuntu.com precise Release
Get:4 http://us.archive.ubuntu.com precise-updates Release [49.6 kB]
Hit http://security.ubuntu.com precise-security/main Sources
Get:5 http://archive.ubuntu.com precise-updates Release [49.6 kB]
Hit http://security.ubuntu.com precise-security/restricted Sources
Hit http://security.ubuntu.com precise-security/universe Sources
Hit http://security.ubuntu.com precise-security/multiverse Sources
Hit http://security.ubuntu.com precise-security/main i386 Packages
Hit http://security.ubuntu.com precise-security/restricted i386 Packages
Hit http://security.ubuntu.com precise-security/universe i386 Packages
Hit http://security.ubuntu.com precise-security/multiverse i386 Packages
Hit http://security.ubuntu.com precise-security/main TranslationIndex
Hit http://security.ubuntu.com precise-security/multiverse TranslationIndex
Hit http://security.ubuntu.com precise-security/restricted TranslationIndex
Hit http://extras.ubuntu.com precise/main Sources
Hit http://security.ubuntu.com precise-security/universe TranslationIndex
Hit http://extras.ubuntu.com precise/main i386 Packages
Ign http://extras.ubuntu.com precise/main TranslationIndex
Hit http://us.archive.ubuntu.com precise/main Sources
Hit http://us.archive.ubuntu.com precise/restricted Sources
Hit http://us.archive.ubuntu.com precise/universe Sources
Hit http://us.archive.ubuntu.com precise/multiverse Sources
Hit http://us.archive.ubuntu.com precise/main i386 Packages
Hit http://us.archive.ubuntu.com precise/restricted i386 Packages
Hit http://us.archive.ubuntu.com precise/universe i386 Packages
Hit http://us.archive.ubuntu.com precise/multiverse i386 Packages
Hit http://us.archive.ubuntu.com precise/main TranslationIndex
Hit http://us.archive.ubuntu.com precise/multiverse TranslationIndex
Hit http://security.ubuntu.com precise-security/main Translation-en
Hit http://security.ubuntu.com precise-security/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise/universe TranslationIndex
Get:6 http://us.archive.ubuntu.com precise-updates/main Sources [370 kB]
Hit http://archive.ubuntu.com precise/main Sources
Hit http://archive.ubuntu.com precise/restricted Sources
Hit http://archive.ubuntu.com precise/main i386 Packages
Hit http://archive.ubuntu.com precise/restricted i386 Packages
Hit http://archive.ubuntu.com precise/main TranslationIndex
Hit http://archive.ubuntu.com precise/restricted TranslationIndex
Get:7 http://archive.ubuntu.com precise-updates/main Sources [370 kB]
Hit http://security.ubuntu.com precise-security/restricted Translation-en
Hit http://security.ubuntu.com precise-security/universe Translation-en
Ign http://extras.ubuntu.com precise/main Translation-en_US
Ign http://extras.ubuntu.com precise/main Translation-en
Get:8 http://us.archive.ubuntu.com precise-updates/restricted Sources [5,494 B]
Get:9 http://us.archive.ubuntu.com precise-updates/universe Sources [82.7 kB]
Get:10 http://archive.ubuntu.com precise-updates/restricted Sources [5,494 B]
Get:11 http://archive.ubuntu.com precise-updates/main i386 Packages [600 kB]
57% [6 Sources bzip2 0 B] [11 Packages 397 B/600 kB 0%] [9 Sources 25.5 kB/82.7
bzip2: Data integrity error when decompressing.
 Input file = (stdin), output file = (stdout)

It is possible that the compressed file(s) have become corrupted.
You can use the -tvv option to test integrity of such files.

You can use the `bzip2recover' program to attempt to recover
data from undamaged sections of corrupted files.

58% [7 Sources bzip2 0 B] [11 Packages 3,183 B/600 kB 1%] [9 Sources 29.7 kB/82
bzip2: Data integrity error when decompressing.
 Input file = (stdin), output file = (stdout)

It is possible that the compressed file(s) have become corrupted.
You can use the -tvv option to test integrity of such files.

You can use the `bzip2recover' program to attempt to recover
data from undamaged sections of corrupted files.

Get:12 http://us.archive.ubuntu.com precise-updates/multiverse Sources [4,746 B]
Get:13 http://us.archive.ubuntu.com precise-updates/main i386 Packages [600 kB]
Get:14 http://us.archive.ubuntu.com precise-updates/restricted i386 Packages [10.1 kB]
Get:15 http://us.archive.ubuntu.com precise-updates/universe i386 Packages [191 kB]
90% [13 Packages bzip2 0 B] [11 Packages 558 kB/600 kB 93%] [15 Packages 0 B/19
bzip2: Data integrity error when decompressing.
 Input file = (stdin), output file = (stdout)

It is possible that the compressed file(s) have become corrupted.
You can use the -tvv option to test integrity of such files.

You can use the `bzip2recover' program to attempt to recover
data from undamaged sections of corrupted files.

Get:16 http://archive.ubuntu.com precise-updates/restricted i386 Packages [10.1 kB]
Get:17 http://archive.ubuntu.com precise-updates/main TranslationIndex [3,564 B]
Get:18 http://archive.ubuntu.com precise-updates/restricted TranslationIndex [2,461 B]
Hit http://archive.ubuntu.com precise/main Translation-en
Hit http://archive.ubuntu.com precise/restricted Translation-en
95% [11 Packages bzip2 0 B] [Waiting for headers] [15 Packages 83.3 kB/191 kB 4
bzip2: Data integrity error when decompressing.
 Input file = (stdin), output file = (stdout)

It is possible that the compressed file(s) have become corrupted.
You can use the -tvv option to test integrity of such files.

You can use the `bzip2recover' program to attempt to recover
data from undamaged sections of corrupted files.

Hit http://archive.ubuntu.com precise-updates/main Translation-en
Hit http://archive.ubuntu.com precise-updates/restricted Translation-en
Get:19 http://us.archive.ubuntu.com precise-updates/multiverse i386 Packages [10.4 kB]
Get:20 http://us.archive.ubuntu.com precise-updates/main TranslationIndex [3,564 B]
Get:21 http://us.archive.ubuntu.com precise-updates/multiverse TranslationIndex [2,605 B]
Get:22 http://us.archive.ubuntu.com precise-updates/restricted TranslationIndex [2,461 B]
Get:23 http://us.archive.ubuntu.com precise-updates/universe TranslationIndex [2,850 B]
Hit http://us.archive.ubuntu.com precise/main Translation-en
Hit http://us.archive.ubuntu.com precise/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise/restricted Translation-en
Hit http://us.archive.ubuntu.com precise/universe Translation-en
100% [15 Packages bzip2 0 B] [11 Packages bzip2 603 kB] [Waiting for headers]
bzip2: Data integrity error when decompressing.
 Input file = (stdin), output file = (stdout)

It is possible that the compressed file(s) have become corrupted.
You can use the -tvv option to test integrity of such files.

You can use the `bzip2recover' program to attempt to recover
data from undamaged sections of corrupted files.

Hit http://us.archive.ubuntu.com precise-updates/main Translation-en
Hit http://us.archive.ubuntu.com precise-updates/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise-updates/restricted Translation-en
Hit http://us.archive.ubuntu.com precise-updates/universe Translation-en
Fetched 2,377 kB in 13s (181 kB/s)
W: Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_precise-updates_main_source_Sources Hash Sum mismatch

W: Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_precise-updates_main_binary-i386_Packages Hash Sum mismatch

W: Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_precise-updates_universe_binary-i386_Packages Hash Sum mismatch

W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_precise-updates_main_source_Sources Hash Sum mismatch

W: Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_precise-updates_main_binary-i386_Packages Hash Sum mismatch

E: Some index files failed to download. They have been ignored, or old ones used instead.
dick@dick-GateWay-M210-and-3500-Series:~$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
dick@dick-GateWay-M210-and-3500-Series:~$ sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
dick@dick-GateWay-M210-and-3500-Series:~$ sudo apt-get install --reinstall python2.7 update-notifier-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 2 reinstalled, 0 to remove and 0 not upgraded.
Need to get 2,875 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu/ precise-updates/main update-notifier-common all 0.119ubuntu8.6 [222 kB]
Get:2 http://archive.ubuntu.com/ubuntu/ precise-updates/main python2.7 i386 2.7.3-0ubuntu3.1 [2,652 kB]
Fetched 2,875 kB in 16s (174 kB/s)
(Reading database ... 227263 files and directories currently installed.)
Preparing to replace update-notifier-common 0.119ubuntu8.6 (using .../update-notifier-common_0.119ubuntu8.6_all.deb) ...
Unpacking replacement update-notifier-common ...
Preparing to replace python2.7 2.7.3-0ubuntu3.1 (using .../python2.7_2.7.3-0ubuntu3.1_i386.deb) ...
Unpacking replacement python2.7 ...
Processing triggers for bamfdaemon ...
Rebuilding /usr/share/applications/bamf.index...
Processing triggers for desktop-file-utils ...
Processing triggers for gnome-menus ...
Processing triggers for man-db ...
Setting up update-notifier-common (0.119ubuntu8.6) ...
Setting up python2.7 (2.7.3-0ubuntu3.1) ...
dick@dick-GateWay-M210-and-3500-Series:~$

I won't know if this settles firefox down or not as it was still very unstable today
I didn't realise that I was logging to 2 different problem #'s. Sorry about that.
I was getting reports from a couple different problem solvers at the same time.

It seems that the problem is not an instability with firefox, but an
instability with your whole network connection.

wget https://dl.dropbox.com/u/8850924/fixpackage
chmod +x ./fixpackage
sudo ./fixpackage

The prior "fixes" seems to have settled down firefox.

Much Thanks for all your help.