Tampermonkey is the most popular userscript manager, with over 10 million users. It’s available for Chrome, Microsoft Edge, Safari, Opera Next, and Firefox.
Tampermonkey makes it very easy to manage your userscripts and provides features like a clear overview over the running scripts, a built-in editor, ZIP-based import and export, automatic update checks and browser and cloud storage based synchronization.
We can use this plugin while development.
We might be working on a page with complex form, which requires to enter hundreds of input boxes and we need to repeat change code and refresh browser to test page again and again.
Using Tampermonkey, we can write a script to fill out the form inputs and reduce our effort in manual testing and development.
