How to: Enable right clicks if disabled on web pages

How do I enable right clicks then?

You can easily overcome that kind of “Security” by entering the following javascript code in the address bar in your browser
javascript:void(document.oncontextmenu=null)
Like in this image

Hit Enter and you’re done; Right clicks are now back on.
Bonus tricks:
1. In Firefox browser, Go to: Tools -> Options -> Content -> Advanced Javascript settings -> Then choose to enable or disable context menu.
2. Hold down the right mouse button
The error message will appear, Hit Enter. (Without releasing the mouse button, You’re still holding it down)
Once you hit enter, the message will disappear.
Now you can release the right-click and it will work***