Version:            (using Devel)
Installed from:    Compiled sources

My Konqueror crashes while viewing a few pages from a site (http://transindex.ro) - sorry I did not save the backtrace. After the crash I ended up with a bunch of npviewer windows. I closed all of them and restarted Konqueror. It asked me to restore the previous session or not. I chose to restore. It opened the pages from transindex.ro and the last tab with bugs.kde.org. I was amazed that the bugs.kde.org had a flash advertising in Hungarian.:) It turned out that the advertising from the last but one page appeared there. I closed the tab and opened a new one: the advertising is still there. I opened several new ones: the advertising is on all new tabs. I closed the last but one tab, the advertizing disappeared from everywhere.
I attach a screenshot of how it looked.