Bookmarks tagged addon

30 Jul addons.mozilla.org (Archive)
"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
19 Jul www.libraryextension.com (Archive)
"Easily discover books and ebooks available at your local library!

As you browse books and e-books, the Library Extension can check your library's online catalog and display the availability of that item on the same page."