"Google +1 Button" is extension that adds +1 button to navigation bar and provides an easy way to recommend current page using Google +1 feature.
Adding +1 for website that does not contain +1 on page will cause opening "Share on Google+" dialog, but if you want to avoid it please turn off this feature in the Options.
You can manage your +1’s in a new tab on your Google profile (https://profiles.google.com).
See also http://www.google.com/+1/button/
Also, you can download this add-on for Internet Explorer from our website googleplusone.pretty-tools.com.