Same problem. The error line of file open.js is this one var openNewWindow = em_ubuntistasmenuCommon.getPrefs().getBoolPref('OpenNewWindow');
Maybe the problem is that Firefox 6.0 and newer versions has changed https://developer.mozilla.org/en/Firefox/Updating_add-ons_for_Firefox_5#JavaScript_changes
I test with last Firefox 9.0alpha and same problem. The right click works and open the link in other tab.
Same problem. The error line of file open.js is this one nuCommon. getPrefs( ).getBoolPref( 'OpenNewWindow' );
var openNewWindow = em_ubuntistasme
Maybe the problem is that Firefox 6.0 and newer versions has changed /developer. mozilla. org/en/ Firefox/ Updating_ add-ons_ for_Firefox_ 5#JavaScript_ changes
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I test with last Firefox 9.0alpha and same problem. The right click works and open the link in other tab.