Version: 4.2.00 (KDE 4.2.0) (using 4.2.00 (KDE 4.2.0), Kubuntu packages) Compiler: cc OS: Linux (i686) release 2.6.27-11-generic (Collected 2 related bugs here) Assuming the seperator (settings->web shortcuts) is set to the space (the default is ":") Bug 1) If do NOT have a default search engine, then when you enter a query ("kde") into the search bar (next to address bar), it will pop up an error message saying "google" is not a supported protocol. If the search seperator is a ":", it works correctly. Bug 2) If you use a default search engine (Google), and enter a search query, it will search for your query with "gg:" prefixed (so it will actually search google for "gg:kde" instead of "kde"). It works correctly if your seperator is ":".
It could be related to bug #109217
Works fine here, KDE v4.6 and up.
Actually this should have been closed a won't fix. If you change the separator and use the previous separator you just switched from to perform the tests, then the result you got are all the correct and expected behavior.
It's been 2 years, so not really relevant anymore (and fixed) but IIRC the issue was that entering "gg kde" with a space separator configured ended up googling for "gg:kde", i.e. the ":" was hardcoded somewhere. The issue was not that "gg:kde" didn't work (because if the separator was a space, this would not have been recognized as a search prefix at all).