JavaScript Playground – GreaseMonkey

I think, Greasemonkey is a playground for javaScript. JavaScript will play according to your rule. May be my understanding of GreaseMoneky is not good, but I do not see much use of it as a developer, because I cannot develop it and give it to other common users. Though it is useful for modifying some site behavior. Those who want to enhance a website browsing experience can install the GreaseMonkey.

Search on a Google for image and Google will show you small image only. You need
to click on the link on top to go to that image. Grease Monkey script can do this for you.
There are lots of javascript code for various websites and work available on userscripts.org. Greasemonkey is a Firefox Add-ons.

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