1350673 - UDP ports *:58351 *:34437

Status: RESOLVED INVALID

(Firefox :: Security, defect)

Description

[Vivek.M]

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

Comment 1

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

Looks like WebRTC connections, about:webrtc lists one once the page has been opened.

Comment 2

[Vivek.M]

thanks - yes, that fixed it - there's an addon to disable it