js.himediads.com

Hi,
I can’t load web pages.
My browser is Firefox v.28.0
At the bottom of the page I see the following message : attente de js.himediads.com (waiting for js.himediads.com).
Avast doesn’t detect any virus.
What can I do ?
Regards.
Francis

Read this topic, and attach the logs
http://forum.avast.com/index.php?topic=53253.0

Is it only related to FireFox ?