Slither.io Mods for FireFox and related browser (Update 2.1.9)

Play slither.io now!

Update Logs

UPDATE: Add-0n for Firefox is avalible at here.

Version 2.1.9 updated:

  • Add Wannacry skin.

Version 2.1.5

  • Add Team Chat (chat with players who use PartyCode same like your PartyCode)040816

040816-2

Version 2.1.3

  • Party Code updated: select code from the list.300716

Version 2.1.1

  • Features [Partycode] is back.

Install Slither.io Mods on Firefox and related browser

UPDATE: Add-0n for Firefox is avalible at here.

Step 1

 

Slither.io Tutorial

Step 2

  • Click here or link at the end post to download user scripts.

Step 3

  • For Tampermonkey: 2
  • For Greasemonkey: Greasemonkey will call you up to select Install button, just click it when you are asked so that you can confirm this installation on Firefox. Click Install3

Step 4

button

Popular game search:

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About Slither.io Game

IO Games are popular web-browser multiplayer games that are free to access at Slither-io.com! There are many game categories you can explore at this site, including Slither Style, 2D Shooter, Agario Style, Zombies, Battle Royale, Racing, and so forth. IO games always offer an amazing free gaming experience to all the players coming from across the world. They can challenge and fight one another in multiple brutal battles for opportunities of building their ultimate dominance in the arenas. All abilities of the players will be strongly tested once joining these games. In addition, the players are also able to make friends with each other, share their experiences and earn themselves a huge amount of fun. IO games are increasingly expanded as further new games appear every day, they will be added to the site to keep the players updated. If you are truly a loyal fan of IO games, make sure to visit this site frequently to experience all of them!