If you have the Adblock Plus extension installed, you will see its icon in the status bar on the bottom right of the browser window.
(Please note these instructions are based on the latest browser version.)
While on TED.com, click on the Adblock Plus icon in your status bar.
Select "Disable on www.ted.com" in the drop-down menu.
Disabling Adblock Plus allows ads to be shown on TED.com. For more information, see the Adblock Plus support page for enabling ads.
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