How to Play with Slither.io Hack Extensions?
Slither.io hack extensions are the most widely used tools in terms of the slither.io game since they allow you to use various hacks while you will be playing slither.io. These slither.io hack extensions are commonly known as slither.io mods and it is possible to download them to your computer after you will install the TamperMonkey. Once you will download and run the slither.io mods, you will not have to do anything else in order to play slither.io with the slither.io hacks.
But there is a drawback in terms of the slither.io mods which are all slither.io hacks will be available to those players who will be playing on that specific slither.io mods. It will be also worth to note that, not all of the slither.io mods include all of the slither.io hacks. For instance, in case you are looking for slither.io bots, you may have to check the description or guide of that slither.io mods in order to see whether the slither.io bots or any other slither.io hacks that you are looking for are included.
Make sure you disable any other slither.io extension and scripts first!
How to install user scripts?
Firefox and related browsers: Greasemonkey.
Google Chrome, Chromium, and related browsers: Tampermonkey.
Opera (version 15 and later): Tampermonkey or Violentmonkey.
Opera version 12 and earlier supports user scripts natively. Violentmonkey provides a friendlier UI and better compatibility.