Below are the requirements for Edge Extensions.
Your Extension must have a single purpose with narrowly scoped functionality that is clearly explained in the product description.
Your Extension may collect personal information only as part of a prominently disclosed, user-facing feature.
If your Extension collects web browsing activity, it must do so only if required by and only for use in a prominently disclosed, user-facing feature.
The Extension must not programmatically alter, or appear to alter, browser functionality or settings including, but not limited to: the address bar search provider and suggestions, the start or home page, the new tab page, and adding or removing favorites and reading list items.
Reference:
Microsoft Store Policies
So as per the documentation, you can develop an extension for a Tab. at the time of hosting the extension, store will check the extension and raise the error if your extension violates any policy.
You can review the policies from above link and then try to correct it and again host your extension.