I know this isn’t really a bug in Newsblur, but I thought you might want to know that EFF’s Privacy Badger (https://www.eff.org/privacybadger) blocks the favicons next to the listing of feeds.
This is a result of blocking s3.amazonaws.com. Not sure what, if anything, can be done about it.
Was just playing with this, and found that if you open Privacy Badger and for s3.amazonaws.com move the slider to the middle (block cookies) instead of all the way to the left you can see the Favicons. Of course that opens up a privacy exposure for s3.amazonaws.com so you gave to figure out which is more important to you