List Feeds par igorlogius

Detects and lists all available feeds (rss,atom,json) of a page.

RSS and Atom feeds are still a very useful method to keep up to date on news and other kind of information. On many sites the feed capabilites are still available but sometimes badly maintained, so that it can be hard to access or find these. This Add-On tries to make it easy to find all available feeds a site has to offer.

Usage: (Basic)

1. Visit a site which contains feeds for example:
   
   • https://blog.mozilla.org/
   • https://en.wikipedia.org/wiki/RSS
     
   • https://www.youtube.com/user/Mozilla
     
   • https://www.youtube.com/channel/UC-CBSBRP82j2t5PQ3M33CVw
     
   • https://www.youtube.com/watch?v=4fviHC7xlX0&list=PLnRGhgZaGeBvDBzQGf4M8HIepPXA9cq-C
     
   • https://jsonfeed.org/
2. a feed icon will be displayed on the end of the url bar
   
3. click on the feed icon, to show the found feed urls.
   

Usage: (Advanced)
You can write your own feed probing / detection functions in Javascript
The supplied function must return an Array as URLs as Strings.
Those URLs will be probed via a HEAD Request and if the server returns a Content-Type which might align with a feed object, it will be added to the feed list. Example function can be found on the github page (see. custom-feed-detectors.json)

Notes:

1. Permissions:
   
   • storage, used to store the custom detection functions, if supplied
   • <all_urls> Host Permission, to automaticaly detect feeds
   • webRequest, to modify Content-type header to preview existing feeds
   This add-on tries to use the minimal number of required permissions to successfully fullfill its intended purpose.
   If you think this could be improved please let me know by opening an issue and i will try to look into it. More Details on the individual permission can be found here: https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/permissions
   
2. Cost/Payment:
   This Add-on is and forever will be subscription and payment free to use for everyone however they like.
   If you are feeling generous you send me a tip via my bitcoin address 35WK2GqZHPutywCdbHKa9BQ52GND3Pd6h4
   
3. Stars/Reviews:
   If you found this add-on useful leave some stars or a review so others have it easier time finding it.
   
4. Bugs, Suggestions and Requests:
   If you have any (e.g. a site it does not work but you think it should) or have improvement suggestions or feature request please open an issue at the "Support Site"