Generally the Fixed Social Buttons plugin is fantastic so thankyou for taking the time to develop it and to keep it updated.
There are a couple of little things that I've worked around with my installation which get undone when you update and I thought you should be aware of them for future updates.
Functionally everything is great - it's the wording for a couple of the buttons - it's not always correct. I know, this is being picky but it takes time to go back into the plugin after an update and replace the code.
For the Reddit button the hover text comes up as 'Reedit' where the other 'share via' buttons have 'share on...' etc. Just to keep things looking uniform I always add a 'share via...' and correct the Reedit to Reddit.
The RSS subscription button just says 'subscribe this feed' - it just needs a 'to' added and it's fine.
Like I said, functionally the plugin is fantastic and incredibly useful but I wanted to let you know about those little things that get re-broken when you update.
Thanks for making and releasing the plugin.