Roland Rust

File Icons adds icons via CSS to your links. 
Configure and displays icons before links on your WordPress website by css (on firefox, opera, etc.) 
Icons come from the famous free icons set at <a href="http://www.famfamfam.com/lab/icons/" title="Creative Commons licenced icons" rel="nofollow ugc">famfamfam</a>. 
Localized: english and deutsch(german)

File Icons

File Icons adds icons via CSS to your links.

Gregory Cornelius

Adjust an image’s margins and border with ease in the Visual editor.

Advanced Image Styles

Adjust an image's margins and border with ease in the Visual editor.

File Icons vs Advanced Image Styles