Regarding our own Extension is not Detected by browser while using window object

[Developer]

We have developed a wallet extension like metamask , which is in testing mode . We already uploaded it in chrome extension. While using the browser, it does not detect our wallet extension details.So anyone could help with this query. Thanks in advance.

For more details, I have attached the image below.

[wOxxOm]

A content script is executed in an "ISOLATED world" environment. You need to use the "MAIN world", see https://stackoverflow.com/a/9517879