Norton has brought their Safe Web browser extension to Edge via the Microsoft Store.
Norton says their Safe Web extension helps protect users from visiting malware-infected sites and online scams while you search, shop, or browse online.
Norton Safe Web provides safety information for the pages you load by updating it with the latest threat intelligence from their servers. They then scan and test malicious pages to warn you in advance to provide you with a safer online experience.
Find the extension in the Microsoft Store here.