For me, Thunderbird had a dns-prefetch leak, but it's fixable via config. | Hacker News

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		silon3 on March 5, 2012 \| parent \| context \| favorite \| on: Facebook uses bgsound to see if you have opened an... For me, Thunderbird had a dns-prefetch leak, but it's fixable via config.

vimalg2 on March 5, 2012 [–]

Seems, the author has already documented this.

For those interested: https://grepular.com/DNS_Prefetch_Exposure_on_Thunderbird_an...

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