Created attachment 52767 [details]
Site from KDE-cache which is shown instead of CAcert.org

Version:           unspecified (using KDE 4.5.2) 
OS:                Linux

Hello,
the version of my Kontact is 4.4.6, unfortunately this option isn't offered in the bugreport-menu, so I chose to label it "unspecified".

Since a few days opening https-Links from Kontact (KMail, Kopete, Akregator tested by me; KAddressbook does react like it should) in Firefox, Konqueror or Midori fails. Instead of loading the page under the given URL (e.g. https://www.cacert.org/) it opens a html-page from file:///var/tmp/kdecache-samuel/krun/10012.0. which is a text-copy of the demanded website, but without graphics or CSS (see Attachment). I tried several browsers (setting them as KDE's default browser using the KDE-Control-Center -> Standardapplications -> Webbrowser) but it failed every time I clicked on a link. Also different https Links (CAcert, Twitter etc.) didn't work, but http without SSL works properly.
A friend of mine using the same configuration (also Archlinux) but with Chrome as a browser experiences the same error. 
The error seems very new to me, I noticed it yesterday in the evening. kdepim-kmail was updated 2010-09-10, so I think the problem is located in another package/program.

If you need further information tell me, so that I can provide it to you.

Greetings,
Samuel

Reproducible: Always

Steps to Reproduce:
Search a link containing "https" in KMail, Kopete or Akregator and open it in an external browser

Actual Results:  
A document from /var/tmp/kdecache-$username/krun/ is opened instead of the expected website

Expected Results:  
The website with SSL-support should open