Fullscreen notification and this thing

[vzttzv]

It is very annoying watching youtube with disable for fullscreen apps on because every time you make a video full screen it shows a notification.
Also, this:

f.lux seem to register a new entry in notification sender every update

[turbo5]

I have the same problem, cannot disable f.lux notifications, and every update seems to create a new entry, and it's annoying