I use Adblock Plus in Firefox, and I have it (sometimes) configured to also block social media buttons. That facility is an optional feature of the Add-On, by including (or not) Fanboy's Social Blocking List in your subscribed filters.
The problem is, that Juiz SPS is itself not blocked (perhaps it even can't be blocked, as only simple HTML is included on the web page), but it's Stylesheet is blocked. See the rule "-social-post-sharer/$~stylesheet" around line 60 of the blocking list. So what happens is, the buttons themselves are there - and function fine - but the little icons in the buttons are missing, so the buttons look wrong, incomplete.
I think that either all of the plugin should be blocked, or none - the way it is now is neither one nor the other. I do not feel it is appropriate for me to do anything on this, Geoffrey is the author and he must decide how to jump here. It may involve contacting the author of the blocking list (Fanboy) and together work out a solution.
My personal preference is that subscribing to the Social Blocking Filter should completely block this plugin - it does completely block most other plugins of this type, and it is only respectful if someone does not want to see social buttons that they should disappear.
Hope this input helps towards a clean solution!