subscribe using user defined URL

[atomGit]

perhaps the user has an add-on for reading feeds - if possible i think it would complete what Mozilla, in all their "wisdom" has removed, by allowing the user to subscribe to their preferred reader add-on if it has a URL, like moz-extension:// (or some other way to send the URL to an add-on)

[shgysk8zer0]

I'm considering how to do this correctly and open to ideas. The thing to keep in mind, however, is that I generate these URLs using URL & URLSearchParams instead of working directly off of strings, so a simple .replace() won't work here.

[atomGit]

i'm not sure we're on the same page ... what i'm thinking is that an empty text input is added to the subscribe options where the user can manually add a moz-extension URL (or even a web reader URL) so they can subscribe with a preferred extension/reader

however i don't know this is worth it because there's probably no way to pass the feed URL to the extension i assume - best you could do is maybe open the extension URL and stick the feed URL in the clipboard so the user can add a new feed and quickly paste the URL

perhaps not worth the effort

[shgysk8zer0]

@atomGit this is actually among my top priorities (at least as far as the add-on is concerned). And, as far as I can tell, we are on the same page with this. I assume the difference here is that I am considering ways of implementing this that will work with add-ons and all of the other services that have been requested, so correctly formatting the URL is the challenge.

For example, you might have a subscribe URL in these formats:

• https://example.com/feeds/subscribe/:feedUrl
• https://example.com/feeds/subscribe?url=:feedURL
• https://example.com/feeds?action=subscribe&url=:feedUrl&token=:someToken

Whether it's an add-on or website is mostly only a difference of protocol. I use web extension URLs every time a popup is opened, passing in data for feed URLs & titles every time a page with multiple feeds has the icon clicked on, so I'm sure it's possible to do the similar to subscribe to a feed though web extension URLs.

So, what I'm working on now is a way of generating URLs compatible with all the different formats. When I was dealing with a small list of pre-defined services, this was pretty simple. But supporting arbitrary URLs is a bit of a different matter.

[markran]

I would love it if you could support the Feedbro RSS feed reader extension (which is a Mozilla "Recommended" extension). Back when Firefox supported adding alt Content.Handlers in "about:config" the proper string for Feedbro was "browser.contentHandlers.types.4.uri" set to "moz-extension://a9c2ad37-e940-4892-8dce-cd73c6cbbc0c/reader.html?preview=%s"