This extension doesn't work in Firefox (I haven't tested Chrome). The screen has a translucent black overlay that cannot be removed making the extension useless.

It opens the search in a new tab at the beginning of all the tabs (far left), which also makes it completely useless.

First of all, the search should happen in the focused tab and the extension search option box should be over that so you can click multiple searches and see the results right there. If you have an option to open a new tab instead, then when I am in the middle of my tabs, or at the end, the tab should open to the right of whatever tab I am on. That is standard behavior.

This extension gets:

-------------------------------------------------------------------------------------------------- ZERO Stars ------------------ 0 -----------------------------------------------------------------------------------------------------------------