In the bottom right-hand corner of the browser page in OP's screenshot, in a grey font, it says, "
(c) 2013 Conduit". Is this the same
Conduit (publisher network and platform) that is notorious for its browser hijacker software?
From Wikipedia:
Conduit distributes what is considered as a browser hijacker. The user customized browser toolbars force change the browser homepage and default search engine and revert to them when the user tries to restore them. Using the browser extension system, they sometimes disguise themselves to make it harder for the user to remove them.
Alongside the copyright notice in the browser page, it says "
FLV Player" - is that how the adverts are being served to OP's PC?
I'm amazed this problem is happening under Linux - Windows and Internet Explorer are the uisual vehicle for such plagues.