How can I fix a dead Firefox?

Since my last Firefox update I have not been able to run Firefox. In fact, I can't do anything with it! Can't uninstall, reinstall, nothing. When I try to open Firefox I just get an error sound. I've read through lots if solutions & none work. I can't open the browser window, so any solution that requires that, will not work for me. Firefox file properties states that I have version 23.0.1.4974, & my OS is Windows XP Professional. Any help is GREATLY appreciated! Thanks.

It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
*https://support.mozilla.org/kb/Server+not+found
*https://support.mozilla.org/kb/Firewalls
*https://support.mozilla.org/kb/fix-problems-connecting-websites-after-updating
*http://kb.mozillazine.org/Browser_will_not_start_up

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    Murray --- ICQ 71997575
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    (If you *MUST* email me, don't LAUGH when you do so!)
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    - Template Triage!
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    "jdcarvin" <[email protected]> wrote in
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