Version:           4.00.82 (KDE 4.0.82 >= 20080610) (using 4.00.82 (KDE 4.0.82 >= 20080610), Debian packages)
Compiler:          cc
OS:                Linux (x86_64) release 2.6.25.4-rtoi-rc7

The option "Use filter only when needed" which can be found on Preferences->Konqueror preferences->Plugins(Global options) (3rd option) doesn't work. At least for flash plugin.

I could notice breakage upon the latest adobe funny annoyance (https://bugs.kde.org/show_bug.cgi?id=132138).

Before that I had a button, where the flash contents lived, I had to press before actually invoking the plugin and seeing the flash contents.

Now the contents is played anyway:
 · On 3.5.9, konqueror rises cpu usage, sound is played, but not video
 · On 4.1 beta1, flash is played normally.

The option as the bug report name is translated from Spanish, I'd appreciate someone change subject if translation is wrong.