Firefox won't start after installing an update from Apple - what to do?

I am not computer savvy. When I installed a recent update from Apple on my Mac. Firefox won't open. Safari wouldn't either, but an Apple tech led me through steps to fix it. He didn't know what to try for Firefox.
== right after update was installed and Mac restarted ==
== User Agent ==
Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_4_11; en) AppleWebKit/533.16 (KHTML, like Gecko) Version/4.1 Safari/533.16

Then a clear CMOS would be the next logical troubleshooting step.
Here is a link to your motherboard specifications.
The information on clearing CMOS is at the bottom of the document.
This is usually the last step before giving up on a motherboard.
The problem you are facing is motherboard hardware firmware related.
****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
2015 Microsoft MVP - Windows Experience Consumer

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Safari won't start after installing security update 2006-001

today i updated my computer with the latest Security patch. Now my computer wont start the browser
i deleted the preference file on my preferences folder to try to solve the problem, but i still wasn't able to start the browser.
i created a new user and tried to start safari once more, but still the progam crashes before it even starts.
this is the output that i get from the crash reporter
Date/Time: 2006-03-02 16:44:55.777 -0500
OS Version: 10.4.5 (Build 8H14)
Report Version: 4
Command: Safari
Path: /Applications/Safari.app/Contents/MacOS/Safari
Parent: WindowServer [63]
Version: 2.0.3 (417.8)
Build Version: 1
Project Name: WebBrowser
Source Version: 4170800
PID: 445
Thread: 0
Exception: EXCBADINSTRUCTION (0x0002)
Code[0]: 0x00000002
Code[1]: 0x95aadd70
... also the Sofware update softare wont start. It will crash before it even starts.
this is the output from the crash reporter
Date/Time: 2006-03-02 16:43:46.431 -0500
OS Version: 10.4.5 (Build 8H14)
Report Version: 4
Command: Software Update
Path: /System/Library/CoreServices/Software Update.app/Contents/MacOS/Software Update
Parent: WindowServer [63]
Version: 2.0.5 (2.0.5)
Build Version: 24
Project Name: SoftwareUpdate
Source Version: 1360000
PID: 439
Thread: 0
Exception: EXCBADINSTRUCTION (0x0002)
Code[0]: 0x00000002
Code[1]: 0x95aadd70
any ideas how to fix it?
Powerbook G4 12" 1.5GHz Mac OS X (10.4.5)

- FOR OS VERSION UPDATES YOU CAN ROLL THEM BACK
have to trash the UPDATE10.4.?.PKG file that is located in:
Hard drive> Library> recipts folder> ??.pkg file. (check spotlight search if you cant navigate to the Recipts folder for .pkg files to take out the one for the latest update you have done.
Basically the only way to "roll back" any applications or drivers that are updated is to do an entire Archive and Install of your OS (can do preserving user and network settings and WILL NOT LOOSE ANY DATA) see knowlege base article 107120 for A&I how to. You can always do the software updates later after the A&I.
That particular security update may have been faulty so of course, mabye try the DL again to see what happens and by all means CHECK THE SUPPORT TAB of this site for software updates if you want to do them. IF IT AINT BROKE, DONT FIX IT. most software updates do little or nothing for the application and somtimes they could cause problems LIKE loosing your itunes library when going from 5.0 to 6.0 and so on...

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I installed a update on my Mac book pro, now when I try to start it, it'll come up with the apple logo and a loading bar below it, gets to about 1/4th and shuts down every time.

Hi Jacobmitchell92,
If you are unable to start up past a grey Apple screen after doing a software update, you may find the following articles helpful:
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/ts2570
OS X: When your computer spontaneously restarts or displays "Your computer restarted because of a problem.
http://support.apple.com/kb/TS4636
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I have win 7. I uninstalled Firefox and downloaded it again.
The icon appears but the program won't start. I am so used to Firefox and don't want to use IE.
I get a few messages:
XML Parsing Error: undefined entity
Location: chrome://mozapps/content/extensions/update.xul
Line Number 14, Column 1:
<wizard <="" ^="" id="updateWizard" p=""></wizard>
I also get a message:
"There is no disk in the drive-insert a disk into drive/device/hard disk4/dr4
I uninstalled Firefox several times , still no luck
I hope you can help me resolve this problem.
Dkmc7

Well I use system restore to an earlier date in May.
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== This happened ==
Every time Firefox opened
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== User Agent ==
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View Solution.

Then a clear CMOS would be the next logical troubleshooting step.
Here is a link to your motherboard specifications.
The information on clearing CMOS is at the bottom of the document.
This is usually the last step before giving up on a motherboard.
The problem you are facing is motherboard hardware firmware related.
****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
2015 Microsoft MVP - Windows Experience Consumer

Mac Pro Won't Start After Installing Security Update Tonight

I just installed the latest security update for Lion on my Mac Pro via software update. The update seemed to install fine. I was about to start work when all of a sudden the system rebooted on its own. Now it just continues to reboot because it can't complete the boot up.
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Firefox won't start after an update. Firefox help says check virtualization settings. What is virtualization settings and where do you check them and for what? I have Windows XP

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-> [[Firefox will not start]]
Check and tell if its working.

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*Don't make any changes on the Safe mode start window.
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Safari won't start, after installing X Lion

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Enter the name of the crashed application or process in the Filter text field. Post the messages from the time of the last crash, if any — the text, please, not a screenshot.
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After installing 3 updates from "software update app" today (june,11th) my MacBook Pro doesn't initialize anymore. Why this is happening? And how do i solve this issue?

Hello Mac Friends!
Need some help here!
After installing 3 updates from the "software update" app today (June, 11th) my macbook doesn' t initialize anymore.
Is there someone who can help me fix this issue?
Why this is happening?
How can i fix it?
Wainting some feedback...

Two places to start with that would have been better:
MacBook Pro
https://discussions.apple.com/community/notebooks/macbook_pro
https://discussions.apple.com/community/mac_os
http://www.apple.com/support/macbookpro
TimeMachine 101
https://support.apple.com/kb/HT1427
Lion Recovery Mode
http://support.apple.com/kb/HT4718
How to clone your system:
http://macperformanceguide.com/Mac-HowToClone-backup.htmlhttp://macperformanceguide.com/Mac-HowToClone.htmlhttp://www.macupdate.com/app/mac/7032/carbon-copy-cloner
If you have backups, if you can and saved your ML installer, you can start over.
Prevention and taking a more proactive approach to system maintenance and repair, rather than fixiing a problem (likely pre-existing?) format the drive or partition and reinstall 10.8.1 and restore from backups.
Never had any issues? freezing? apps crashing before?

When attempting to install "Software Update" from Apple, the process talls at "Configuring Installation". Even allowing it to run for 24 hours does not result in any progress.

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Thanks for the straightforward tip. I had restarted once already, but the second time was a charm. The install button now works. Don't know if it mattered, but I also repaired disk permissions and then restarted in safe mode this time.
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Firefox won't start after installing an update from Apple - what to do?

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