Not most frogs-- and also most frogs, even the ones that can tolerate high salt content in water, prefer to breed in fresh water.

So, some exceptions are the adult Florida leopard frog --which is found to live in marshes near brackish or salt water. The crab-eating frog (found in SE Asia) and a certain species of toad, called the cane toad, are known to live and breed near water with high salt levels, and can survive for extended periods with high salt conditions.

 No in the salt water the frogs never live. They may die