Shortcut to Google Search box in Firefox

We all have seen Google Search Engine sitting inside Firefox Browser. Earlier, if I had to search something, I used to create a New Tab (Ctrl+T). Cursor would automatically be blinking in the address bar. Then Tab, so that the cursor moves to the Google Search Engine query box where we can give in the key words to search.

Today, accidentally found out that there is a way to directly go to Google Search Engine query box with Ctrl+E. Ofcourse, opening New Tab remains same. But incase anytime we want to go to that box within same Window or Tab, instead of using mouse, this shortcut would be handy.