Will Egyptian invasion cause Anglo-French intervention?
Algaz is correct, the British and the French won't intervene just because Egypt has invaded Greece. Egypt under Muhammad Ali is technically still a part of the Ottoman Empire even if they are independent in all but name, so it isn't like some outside power has joined the war against the Greeks.I think Anglo-French intervention will come when the Great Powers decide what kind of Greece they want, in order to impose their wishes to all sides, and not because they are moved by the plight of the poor Greeks who are getting slaughtered.
The Great Powers are going to get involved when it is in their interest to get involved as callous as that sounds and unfortunately for the Greeks that time hasn't come yet. But it will be soon.