Hi!

Yesterday, I experienced strange behaviour with Firefox. I was sending
two files via Gajim to a friend, for which Gajim was listening on port
3000. After that, I surfed on YouTube. After a short while, I wanted to
send a third file, but this time, Gajim told me that port 3000 is
already in use. I was confused and thought that maybe Gajim didn't close
it correctly. Therefore I did a netstat -an which showed that the port
was really in use (but no connection to it IIRC). Then I did lsof and
saw that the port was used by Firefox. So Firefox opened the port just
in the 5 minutes where I wasn't sending a file. And the strange thing is
that it listened port 3000, one of the few ports routed to the outside
world, which was in use 5 minutes before by Gajim.
Stupid as I was, I instantly closed Firefox instead of taking the network
cable out and connecting to port 3000 via telnet. After I closed Firefox,
the port was closed again. I closed it the normal way, which means I just
closed the two tabs.
Now I'm wondering: Is there anything that could cause this behaviour? Or
is my system definitely compromised and I should reinstall it?

The versions I use are:
Firefox: 2.0.0.4
libjpeg: 6b-1
zlib: 1.2.3
expat: 2.0.1
libtiff: 3.8.2
libxml2: 2.6.29
libpng: 1.2.18
libxslt: 1.120
Flash: Don't know how to look it up. It's either 9 Beta or 9 Final.
Anyway, the MD5 hash of the plugin is 0273c3d183c8665f21175896ae4d1b4e if
that helps.

TIA,
Jonathan
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