> *
>
> If I double press "C-x C-f" Helm for files changes the prompt to
> "Find files or Url" (as shown in the screenshot), maybe is my
> configuration, but the thing is, that I have little or nothing
> changed for helm, just a couple of key bindings and that's all...
It sounds like C-x C-f just doesn't evoke `helm-find-files' for you.
Maybe you use some package that rebinds C-x C-f?
I suggest you M-: (setq debug-on-quit t), type C-x C-f (to see the
unexpected behavior). Then hit C-g. You should see a backtrace that
should reveal a bit what's going on.
Regards,
Michael.