LinkExtend [1]
License type:
Page anchor:
linkextend
Review article:
Best Free Firefox Add-ons - Safety
Pros:
combines ratings from dozens of online services in one, offers additional (unrelated?) tools for page inspection and SuperSearch
Cons:
somewhat annoying toolbar interface
Product type:
Is a web service or web application
Top Pick?:
0
Download page:
https://addons.mozilla.org/en-US/firefox/addon/linkextend-safety-kidsafe-site/
Developers website:
http://www.linkextend.com/