I'm tired a bit explaining this to everyone
Bubble and 'New products' category are not the same.
Bubble shows new products since
last visit only.
It doesn't matter how many days set in your admin since this option is used for 'New products' category.
To see the bubble you need to
- open your store on other computer (in the other browser) to set the 'last visit' cookie there
- close this browser
- add new product in you current browser
- open your store on other computer one more time
Thus it works like this:
- when the customer opens your store and already has the cookie of his last visit and some products were added since then he will see the bubble with the number of these products and the link to see them.
- when he closes this bubble or follows the link he will get new 'last visit' cookie.