*Applies to new Chromium Edge only
As you may be aware, the new Edge is very similar to Google’s Chrome browser in that both are built on the Chromium platform with Blink as the default rendering engine. This change has improved Edge no end and added a number of benefits, not the least of which is compatibility with extensions developed for Chrome and available via the Chrome web store.
It seems Google has now surreptitiously implemented user-agent sniffing on Chrome web store to identify the Chromium-based Edge and issue the following warning to Edge users only:
Google’s message does not contain any specific claims or accusations but it certainly implies a warning regarding extension security that many Edge users might be alarmed by… which is surely Google’s aim. I can assure you, there are zero security issues when utilizing Chrome extensions in Edge. If they work fine and are secure in Chrome, there is no reason why the same would not apply for Edge. It is also worth noting that Google is not displaying this warning message in any other Chromium-based browsers, only in Edge.
What Is The User-Agent
The user-agent is part of the developer tools available in most browsers and is used by developers to emulate different browsers and platforms to check/test compatibility. As part of its integral functionality, the user-agent specifies whatever browser is being used and some companies, including Google, abuse this component by implementing user-agent sniffing to identify and block access for a particular browser or, as in this case, issue a message for a specific browser.
This is a fairly vindictive act by Google and obviously the Google hierarchy is not happy with Microsoft’s decision to change Edge over to the Chromium platform. The user-agent can be changed via the developer tools menu but I would not suggest doing this as a work-around. My advice would be to simply ignore the message and carry on as normal.