Version: (using KDE KDE 3.5.6) Installed from: SuSE RPMs With an URL like http://www.example.org/uri%20with%20spaces and using Firefox (mozillafirefox) as component for viewing http/https contents, one can observe a strange behavior of Firefox, as the command line kfmclient openURL http://www.example.org/uri%20with%20spaces is executed. Firefox will try to open and show three web sites, corresponding to the tokens of the URL that are separated by "%20": http://www.example.org/uri http://www.with.com/ http://www.spaces.com/ The forms of the last two URL will depend on the browser's auto-completion configuration. Both command lines using Firefox or Konqueror directly will expose the expected behavior.
kfmclient(1830)/konqueror ClientApp::createNewWindow: KUrl("http://www.example.org/uri with spaces") mimetype= "" works fine in Konqueror; both from command line and from "open in new tab". Firefox bugs shouldn't be reported here. As far as I can make out, your problem is: The default browser is set to be konqueror, but you use firefox, and it opens the url with spaces via kfmclient. One guess is that kfmclient translates the %20 too early, and calls firefox with spaces, which are interpreted as multiple sites. This is a distro bug, so please report it to them if you are still having this problem. Possible bug title: kfmclient translates %20 too early with firefox Thanks!
Also, notice that the kfmclient help says the url is between ''.