Have done it. Run fridge on propane to lessen load on cord
I used a 100' 12 Ga Extension cord from Sears/K-Mart but alas those are hard to find. (The cord has a push button on the outlet so it "Grips" what's plugged into it. You can get 12ga extension cords at Lowe's Mennards and Home Depot however I do suggest 12 ga.
In my case I have a plug in converter so ONLY the converter was connected. the other stuff that uses 120 volt ate off the inverter (Televisions, Computers, related electronics some fans and the kitchen stuff but it ate generator power)