I got a way out to search in google in whisker menu: Use this command: exo-open --launch WebBrowser https://www.google.com/#q=%u Hope this can be added to mainstream because google search is really useful.
I will consider it, but why not just use the web browser's search field as you will need the web browser anyway? Also, I would default to a privacy conscious search engine like DuckDuckGo instead: exo-open --launch WebBrowser https://duckduckgo.com/?q=%u
Added in a0536da.