Меnu Noté 1 sur 5 étoiles

No button!

For your Information Noté 2 sur 5 étoiles

The icon problem may not be because of the add-on.

Please do not comment in bug reports.
Bug 1155413 - Many icons missing from Add-on Customize Manager
https://bugzilla.mozilla.org/show_bug.cgi?id=1155413

Noté 3 sur 5 étoiles

I confirm it could be nice if the icon does not have a malfunction... It does not appear...