Open the Roblox Avatar Extension in your browser
Sign in to your Roblox account
Go to the Avatar section
Click the item you want to add
Select Wear or Equip
Repeat for each item you want to add
Check if the item is compatible with your current avatar
Remove any conflicting items if needed
Refresh the page if the item does not appear
Update the extension if it is not working properly
Clear your browser cache if changes do not show up
Make sure the extension has permission to run on Roblox
Use the Roblox Avatar Editor if the extension does not support more items
Save your avatar after adding the items