Fixes

Settings could open blank, with nothing on screen to explain it. This happened on a fresh install if you did not turn on extension-list syncing, which is the default, so most people were affected. Settings now opens either way.
A data type could stay switched on after losing the permission it needs, and quietly sync nothing. Konode now names the missing permission and tells you how to restore it, and the rest of your data keeps syncing meanwhile.
If a screen fails to draw, you now get an explanation and a reload button instead of an empty window. Your synced data is never involved in those failures, and the message says so.
A browser feature Konode cannot use no longer stops the rest of it from working.
The "missing on this device" list could hide extensions you really do not have, and dropped anything the browser does not classify as an extension.
Sideloaded on Firefox for Android

Konode is not listed for Android, but if you installed it there by hand: bookmarks and history cannot sync on that platform, because Firefox for Android provides no API for either. Konode now says so plainly instead of failing, and setup no longer blames your WebDAV server for a prompt the browser is unable to show. Open tabs still sync.