This article discusses why you cannot open an RSS feed in your browser.
Viewing RSS Feeds in Your Web Browser
In 2019, most web browsers stopped supporting RSS feeds natively. This means that if you open an RSS feed in your browser, you will not see a nicely formatted page. Instead, you will see a lot of RSS coding.
This is now the default behavior and there is nothing you can do. There are no settings to adjust to enable RSS feeds. Your browser simply doesn't support it any longer.
RSS Feed Reader Extension/Add-On
We suggest you download an appropriate RSS Feed reader extension/add-on for your specific browser.
For example, you can use the “RSS Subscription Extension (by Google)” for Google Chrome. Firefox also offers over 100 RSS feed reader add-ons. The choice is yours.