The moment I browse youku.com, two UDP ports spring into existence on my local machine and stay on till I kill the browser. I have noticed these ports at other times but not in a reproduce-able manner (couldn't figure out which website triggered them into existence). http://storage1.static.itmages.com/i/17/0326/h_1490512659_3577441_1f63caa6b0.png firefox 7894 veek 115u IPv4 98668 0t0 UDP *:58351 firefox 7894 veek 117u IPv6 98670 0t0 UDP *:34437 I tried to disable about:serviceworkers - did nothing. Also disabled addons 'safe mode' - nothing. Also disabled webIDE via devtools.webide.enabled (and opened-visited all my usual tabs so content loads - youtube - flash also) So I tried 'safe mode' and then I opened all my tabs - nothing but the moment i hit youku.com, bam! the ports popped up. And they stay open forever even after I close youku.com. What should I do? I ran strace -f -o -p xxx but that's very verbose and there were a lot of selects which are innocuous. I run a USB linux debian distro so about 12GB of files. Linux debian 3.16.0-4-686-pae #1 SMP Debian 3.16.39-1+deb8u2 (2017-03-07) i686 GNU/Linux. Firefox 32 bit 52.0.1 updated
Looks like WebRTC connections, about:webrtc lists one once the page has been opened.
thanks - yes, that fixed it - there's an addon to disable it