You cannot install Java Edition mods directly on Xbox
Use Minecraft Marketplace for add-ons, skins, worlds, and texture packs
Download and use Marketplace content from inside Minecraft on Xbox
For custom content, use Bedrock-compatible add-ons only
Import add-ons through supported file methods if available on your device setup
Join worlds or realms that already use add-ons or custom content
Use external mod-like content only if it is specifically made for Minecraft Bedrock on Xbox
Avoid unofficial mod installers, since they do not work on Xbox and may violate terms
Keep Minecraft updated to access the latest Marketplace and add-on features