A proposito de iste extension

SuprHotKeys provides the following useful shortcuts:

On any page:

Ctrl + Space : Select any text and press this shortcut to search it in Google in the current tab.
Ctrl + Shift + Space : Select any text and press this shortcut to search it in Google in a new tab.

On Google search pages:

Ctrl + Space : If text is selected, it searches it in google in the current tab. If no text is selected, it focuses the search textbox.
Ctrl + Shift + Space : if text is selected, it searches it in Google in a new tab. If no text is selected, it selects all the words in the current search textbox.

Global shortcuts:

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