Recent answers to Why Firefox launches Updater when starting Firefox if I have disabled all updates?https://support.mozilla.org/eu/questions/9205582012-02-22T11:32:16-08:00If files already have been downloaded then remove the files in the updates and updates\0 folder.
You2012-02-22T11:32:16-08:00cor-elhttps://support.mozilla.org/eu/questions/920558#answer-313670<p>If files already have been downloaded then remove the files in the updates and updates\0 folder.
</p><p>You can also delete active-update.xml and possibly updates.xml (stores the update history).
</p>
<ul><li> <a href="http://kb.mozillazine.org/Software_Update" rel="nofollow">http://kb.mozillazine.org/Software_Update</a> (Software Update not working properly)
</li></ul>
<pre>C:\Users\&lt;user&gt;\AppData\Local\Mozilla\Firefox\Mozilla Firefox\updates
(%LOCALAPPDATA%\Mozilla\Firefox\Mozilla Firefox)
</pre>