brook VS want-my-rss

There is an addon for this too https://github.com/Reeywhaar/want-my-rss (others available but this is what I use).

Although I haven't seen an addon that handles SPA well. Ideally it would monitor the DOM for links being added and removed. Although that may be expensive to do in an extension.

There are things we can do to make RSS-based consumption much easier. I use an RSS browser plugin for Firefox[1] so that a feed icon shows up on any page advertising[2] a feed. The feed icon let's me subscribe to the site with 2 clicks (and no copy/paste). This is a space that is ripe for building better tools, especially since so much of the (non-walled) internet still exposes RSS. We even have a handful of companies getting people to pay $$ for a solid hosted feed-reader experience (Feedly, Inoreader, Newsblur, etc.)

[1]: https://github.com/Reeywhaar/want-my-rss

Also for FF I like https://github.com/Reeywhaar/want-my-rss. But I've used Feed Preview in the past too.

Note that no modern browsers show advertised feeds by default, so many people don't find them. However you can install an extension (I use https://github.com/Reeywhaar/want-my-rss but there are others) that will pop up an RSS icon when a feed is available. Alternatively most feed readers will support subscribing just by specifying the page URL, they will then auto-discover the feed and subscribe.