MediaBox.1.2.0.353 and Firefox

[Dell N]

Yesterday, I updated to MediaBox.1.2.0.353 from MediaBox.1.0.0.348.
Now, if I start MediaBox after Firefox is running, Firefox will stop
connecting to any sites. To use Firefox with MediaBox, MediaBox must
be started before Firefox. I have tried this on two different
computers--one with Windows 7 and Firefox 12, and one with Windows XP
and Firefox 5.0.1. The same thing happens on both computers.

This does not happen with IE, Opera or Chrome.

[Bulfen]

Same problem here also after update. But also for chrom here.
Windows 7 (64bit) and Firefox 12
Also if I start Mbox befor FF it will load webpages but not pages on my locale server. (127.0.0.1)
All this happend after the update. Before update it worked good.