Firefox install

Its not a good start when you select the custom install and one of the components is greyed out AND not ticked. Then when I launch it I get “Error launching browser window: no XBL binding for browser”. This is apparently caused by having TabbedBrowser Extensions loaded. By disabling this in Phoenix (my old install) it then loads up ok. This is also cured by following the readme and disabling all extensions and/or creating a new profile (yuck)