Comment 19 for bug 1398614

I was searching for a way to disable this, I hope I have found the right place in configuration settings...

I opened in menus :

Applications
System tools
Preferences
Searching & indexing

I unchecked everything in "semantics"

It looks like there's an option missing in "limits", I would like to choose "never" for "background content indexing", but this option is not provided here...

This is manual translation from my installed lang to english so may not be 100% accurate