The KDE upload dialog is not working for me on Firefox.
Can you paste the exact firefox version as under “About”?
“Firefox 22.0
Mozilla Firefox for Netrunner
netrunner - 1.0”
Packpage version 22.0+build2-0ubuntu0.13.04.2 according to Synaptic.
Tried to reinstall firefox-kde-support through Synaptic(it didn’t solve the problem) and got some strange output:
debconf: unable to initialize frontend: Gnome
debconf: (Can't locate Gtk2.pm in @INC (@INC contains: /etc/perl /usr/local/lib/perl/5.14.2 /usr/local/share/perl/5.14.2 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.14 /usr/share/perl/5.14 /usr/local/lib/site_perl .) at /usr/share/perl5/Debconf/FrontEnd/Gnome.pm line 91, <> line 1.)
debconf: falling back to frontend: Dialog
(Reading database ... 177270 files and directories currently installed.)
Preparing to replace firefox-kde-support 0.6.4~git20130318+5-0ubuntu0~ppa5~raring1 (using .../firefox-kde-support_0.6.4~git20130318+5-0ubuntu0~ppa5~raring1_amd64.deb) ...
Unpacking replacement firefox-kde-support ...
Setting up firefox-kde-support (0.6.4~git20130318+5-0ubuntu0~ppa5~raring1) ...
Jeti_X:
Seems you updated firefox to v22, where Netrunner 13.06 ships v21 default, as that’s the only one currently working with the firefox-kde patch.
If you update firefox from ubuntu, it’s not properly patched against firefox-kde.
Thats it, thank you. 
After uninstalling Firefox then reinstalling again it worked(and now it is 21.0). I wonder if the version 22.0 came with the dist-upgrade…