Airline transfer time at Paris CDG

Assuming that you are arriving from the US, too tight under the best of conditions. If you miss the Easyjet flight it is a dead ticket. To be safe you should give yourself a min of three hours.

Fat chance.

Your safest bet would be to book the easyJet flight that leaves CDG at 13:45. If you're a gambler, you could book the easyJet flight that leaves Orly at 11:25. Allow up to one hour to clear immigration/passport control at CDG and roughly 1hr15min to take the RER B from CDG to Antony and the Orlyval shuttle train from there to Orly. However, like all budget airlines, easyJet has a strict check-in deadline. If you miss it, your ticket is worthless. If you arrive late at CDG, all bets are off.

Not a chance that you'd make it.

If you are arriving in Paris from CA on whatever airline, maybe you could add the leg from Paris to Milan onto that ticket so that the airline is responsible for any connections rather than gamble on connecting to a second airline. good luck

You should read easyJet's very specific regulations on their website easyjet.com They close luggage deposit and boarding well before the published departure time, with no exceptions. You would probably still be standing in line at passport control when they close. Also you cannot check your luggage through to your destination when you board the first flight. And your ticket is for that specific easyJet flight, no refunds or exchanges for a subsequent flight.
easyJet is not alone in these rules. Many airlines close the cabin door a half-hour or more before departure and the only chance of getting in is if you are connecting on the same airline. Even then, that time span is probably too tight for CdG.