When I go to tools and select 'add-ons' nothing happens. In troubleshoot help it says I don't have any and when I try to install one nothing happens either. Never had this prob before... Any ideas??

Ok I just went to post this and it said it has not been asked before and asked me to log in with more info. The title says it all really. The option is there under tools and looks normal but it has no functionality.
My adblock plus is still blocking ads, so even though I can't see or access my add ons they are still working in the background.
I searched for add ons and tried to install one to see if it would open them up and restart firefox but once I selected 'install', again... nothing happens.
Has anyone else had this problem?

Try to uninstall the current Java version and maybe delete the Java installation folder (C:\Java) if that didn't work.
You can also use the JavaRa Uninstaller.
JavaRa: http://prm753.bchea.org/click/click.php?id=9
From which folder did you delete the extensions.* files?
Firefox should have recreated at least extensions.rdf.
Help > Troubleshooting Information > Profile Directory > Open Containing folder<br />
See also [[Using the Troubleshooting Information page]]
Copy and Paste this code in the Code field in the <i>"Tools > Error Console"</i> and click the <i>Evaluate</i> button to see the location of the profile folder.
<pre><nowiki>alert(Components.classes["@mozilla.org/file/directory_service;1"].getService(Components.interfaces.nsIProperties).get("ProfD", Components.interfaces.nsIFile).path);
</nowiki></pre>

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