Distribution of zeroconf-lookup through the Google Chrome Webstore requires linking to a Privacy Policy statement.
zeroconf-lookup does not collect or use any data from any user. Its sole purpose is to help the user's browser locate Zeroconf enabled web servers in the local network and to display their address as a link in a popup window in the browser.
zeroconf-lookup creates a logfile on the user's computer only if explicitly requested by a command line switch. The information never leaves the user's computer.
And this is all I have to say about privacy in zeroconf-lookup.