跨相同域的页面的本地存储，但使用不同的端口

I'm trying to use local storage across various pages on the same domain, but for some reason Firefox is creating multiple instances of the same storage data across pages if they are using different ports. So if I set something for www.example.com:80 that won't persist when going to www.example.com:8000, it will create an entirely new redundant entry of the same data. How can I rectify this and get it to use the same entry? I'm trying to use local storage across various