Tom's Bookmarks on Nostr: Feed Indicator - FIrefox Addon "Adds an icon to indicate RSS/Atom feeds to address ...

Feed Indicator - FIrefox Addon
"Adds an icon to indicate RSS/Atom feeds to address bar and previews a feed."

Went looking for an extension similar to streetpass (https://streetpass.social/) but for RSS feeds- this looks like a pretty good solution. It shows the RSS icon in the address bar whenever you're on a webpage with an RSS feed