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How do I disable Firefox upgrades?

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After upgrading to Firefox 5.0 on Windows XP SP3 fully patched, my laptop would not boot properly. After many attempts at uninstalling FF 5 I gave up and reinstalled Windows. All is well now running FF 4.01 and I want to keep it that way. Thanks for your help.

After upgrading to Firefox 5.0 on Windows XP SP3 fully patched, my laptop would not boot properly. After many attempts at uninstalling FF 5 I gave up and reinstalled Windows. All is well now running FF 4.01 and I want to keep it that way. Thanks for your help.

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In the about:config window, change these settings:

  • app.update.auto - set to false
  • app.update.autoUpdateEnabled - set to false
  • app.update.enabled - set to false
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Thanks for your response. I just found the answer in the Advanced/Updates section of Options/Tools.