Created attachment 106983 [details] Failure on connect When trying to add tabs to KSysGuard the System Monitor Add-On Installer is stuck at "Loading of providers from file: http://newstuff.kde.org/cgi-bin/hostuff-provider?site=ksysguard failed" When visiting the specified site Firefox says the certificate is expired (see screenshot). So this may affect other KDE stuff (haven't tried it though). I'm using Neon - all updates installed.
Update for Version 5.10.5: Same error message Meanwhile: http://newstuff.kde.org/cgi-bin/hostuff-provider?site=ksysguard is not available anymore via firefox.
*** This bug has been marked as a duplicate of bug 338669 ***