Hmm, that's strange. I'm not seeing it on my desktop. Do you mind posting a screenshot of it?

For me they all get more and more misaligned: https://imgur.com/gallery/QUDuE

FF 55.0.2 on Ubuntu 16.04.3 with uBlock and Privacy Badger

For me, the Vine tile doesn't have an app icon (looks like uBlock is suppressing it), and everything below shifts up:

https://kek.gg/i/3kytsn.png

(probably an argument for min-height)

Thanks for the screenshot! I cannot reproduce this on my end but will watch out for it.

Seems to be blocked by uBO filter:

##img[alt="Vine"]

Arguably an issue with the filterlist being too broad. Changing the alt-text would probably work as a workaround for now.

Thanks! It should be fixed now.