From this detailed guide, you can learn how to install Watchnixtoons2 Addon On Your Kodi.
The WatchNixtoons2 Kodi Addon is one of the best addons for anime and cartoons. There is an enormous amount of content which is pulled from one certain website so you don’t have to mess around with multihosters at all. Most videos are in original Japanese language with English subtitles or English language (subbed or dubbed versions).
this installation guide applies to all compatible devices including Amazon Firestick, Fire TV, Android & iOS, Mac, Windows, Android TV, Android Boxes, etc.
How To Install Watchnixtoons2 Kodi Addon
- Open Kodi
- Be sure to have the Unknown Source box checked as Kodi requires this before installing 3rd party add-ons.
- HOME Screen > Add-ons > Settings button 
> Add-ons > Enable Unknown Sources.
- From your Home Click Settings (cog icon top left)
- Click File Manager
- Click None
-Type in the following EXACTLY https://team-crew.github.io
- Click OK
- Click back on your remote/keyboard
- Click Add-ons
- Click Install from Zip File
- Click THE CREW
- Click repository.thecrew.x.x.zip.
- Wait for Add-On Enabled Notification
- Click Install from Repository
- Click The Crew Repository
- Click Video Add-Ons
- Click Watchnixtoons2
- Click Install
- Wait till you can see the message Add-on installed pops up. That's it! You can now find you addon from main menu > Add-ons, enjoy.