1. Twitter doesn't provide feeds
2. Our custom integration that enables feeds relies on Twitter APIs which Twitter has changed recently drastically basically blocking unauthenticated access.
3. The most recent Feedbro 4.15.9 should support Twitter profile feeds again (but searches don't work since Twitter requires logged on user for that)

Thank you for understanding.

This is explained in our privacy policy:
https://addons.mozilla.org/en-GB/firefox/addon/feedbroreader/privacy/

Without that permission the WebExtension cannot access any URLs. Please reconsider your 1* rating.

PS. Since Feedbro is a Mozilla recommended extension, source code of EVERY release is manually reviewed to ensure it's 100% safe.

Without the feed URL it's a bit hard to troubleshoot this but Feedbro 4.5.0 now properly handles XML feeds that are in "oldest first" order which might have caused this in certain situations.

Edit (2020-07-29): another thing we noticed (and is fixed in 4.5.1 which is soon available) is that Firefox has a bug in Date object parsing when the year is expressed with just two digits. For example this string "Mon, 31 Aug 20 13:00:28 +0200" was parsed by Firefox JavaScript Date object as Wed Aug 20 2031 14:00:28 GMT+0300. This worked fine on Chromium-based browsers which made it hard to spot. This is also a likely reason for those skipped articles.

Of course, it would be have been a lot quicker to track down with a feed URL to test with. So for everyone else as well: if you think there's a bug somewhere, please include a feed URL that we can test it with.