You can make sure, that EmployeeF inherits it's prototype from PersonF by using Object.create with PersonFs Prototype:

EmployeeF.prototype = Object.create(PersonF.prototype)

let PersonF = function(name, id){
    this.name = name;
    this.id = id;
}

PersonF.prototype.getDetails = function(){ 
    console.log(`Printing details in parent in function way :${this.name} : ${this.id}`, this); // added log of `this`
}

let pers = new PersonF('Person', 111);


let EmployeeF = function(name, id, salary){
    PersonF.call(this, name, id); 
    this.salary = salary;
}

EmployeeF.prototype = Object.create(PersonF.prototype) // create Employees Prototype from Persons

EmployeeF.prototype.printDetails = function(){
    console.log(`${this.name} : ${this.id} : ${this.salary}`);
}

const emp = new EmployeeF('John', 1 , 10000000)

emp.getDetails();

This is also (part of) what Babel does when you target <IE10:

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }
  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  Object.defineProperty(subClass, "prototype", {
    writable: false
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

Problem

Your problem is :

Object.setPrototypeOf(EmployeeF, PersonF.prototype);

This method is made for objects used as instances, and not objects used as classes; it actually sets the __proto__ attribute – for instances –, and not the prototype attribute of a class.

You can see this in this polyfill:

Object.setPrototypeOf = Object.setPrototypeOf || function (obj, proto) {
  obj.__proto__ = proto;
  return obj;
}

Then, getDetails is actually accessible like this: EmployeeF.getDetails() (which calls behind the scene EmployeeF.__proto__getDetails().

Solution

I suggest you this:

function Person(name) {
    this.name = name;
}
Person.prototype.print = function () {
    console.log('I am', this.name);
}

function Employee(name, id) {
    this.name = name;
    this.id = id;
}

// What has changed !
Employee.prototype = Object.create(Person.prototype);
Employee.prototype.constructor = Person;

Employee.prototype.work = function() {
    console.log(this.id, this.name, 'is working...');
}

var e = new Employee('Michel', 43);
e.print(); // 'I am Michel'

Explanation

The objective here, is to say "The prototype of the prototype of Employee is the prototype of Person", ie Employee.prototype.prototype = Person.prototype.

Why prototype.prototype ?

Because the prototype of Employee must contains the inheritable methods of Employee, not Person's ones; so the inherited methods of Person will be at the NEXT prototype in the prototypes chain.

Details

Object.create(a_prototype); return an empty object, but sets the prototype of this object to a_prototype. So, first, we create the prototype of Employee to an empty object, but having Person.prototype as its prototype:

Employee.prototype = Object.create(Person.prototype);

Now, it remains just one problem: Employee.prototype has no constructor! Then, we simply add it via:

Employee.prototype.constructor = Person;

Thanks to this, we can see that Employee inherits from Person through Employee.prototype.constructor. To see this, just try to print an instance of Person: the constructor is at person_instance.__proto__.constructor; then try to do the same thing with a new Employee, without the code above: no constructor in the prototype!

Solution 2

This is a simplified solution of what does TypeScript transpiler to convert classes from ES6 to ES5:

Object.setPrototypeOf(Employee, Person);
function PrototypeOfEmployee() {
    this.constructor = Employee;
}
PrototypeOfEmployee.prototype = Person.prototype;
Employee.prototype = new PrototypeOfEmployee();