Went on questions page - found uninstall from safari - went to pref. onto extensions - no addthis anywhere - to click on right to uninstall.
Safari - Lion - I'd like to uninstall thx!
If your extensions preferences pane doesn't have AddThis on it - like this http://i.imgur.com/Amm88.png - then you don't have the plugin installed.
Where are you seeing AddThis? In your toolbars or on websites?
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