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Firefox for Ubuntu connecting to DuckDuckGo.com on startup


Trying to resolve the issue at: http://ubuntuforums.org/showthread.php?p=12434774#post12434774

On launch of Firefox (for Ubuntu):

Packet traces shows DNS query for duckduckgo.com, then a TCP connection is made, then a few seconds later it is terminated.

Thanks for any direction!

Additional System Details

Installed Plug-ins

  • Version
  • Google Talk Plugin Video Accelerator version:
  • Shockwave Flash 11.5 r502
  • Displays Java applet content, or a placeholder if Java is not installed.
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • Microsoft Office for Mac SharePoint Browser Plug-in
  • The Flip4Mac WMV Plugin allows you to view Windows Media content using QuickTime.


  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:17.0) Gecko/20100101 Firefox/17.0

More Information

Ubuntu and Lubuntu 11.10 Firefox 17.01.
This happens in a fresh profile and even in safe-mode.

  • Top 10 Contributor
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10752 solutions 96760 answers

Do you have any pages bookmarked (e.g. feed items) that may be causing this?

Did you use a reset to get the new profile or did you use the Profile Manager with a really clean profile?

Question owner

Thanks! Cross-posted that to the OP on Ubuntu Forums. Will post any updates here, if the user doesn't beat me to it : )

Question owner

Looks like this was resolved by updating:

So I upgraded Ubuntu from 11.10 to 12.04 and suprisingly Firefox doesn't connect to duckduckgo on startup anymore.