If it's MIT license, it's mandatory to publish the source code.

works perfectly

Does what it says, although due to its built-in priority to take the 2nd spot in the row, it sometimes interferes with something you search, but you want images instead. So you click images but in that fraction of a second it gets replaced by "Maps" where you end up. So you have to go back, wait a second for the "Maps" to appear and THEN click "Images" in the third spot. That adds up over the the course of a day. It would be worth a thought to put "Maps" in 3rd place for that reason.

Edit: The dev just updated it. What a champ.

Super! Macht was es soll! / Working fine thank you

just change your google settings instead:

support.google.com/websearch/thread/261655134?hl=en&msgid=266481712

edit - responding to the developer:
the setting mentioned above is per-session. On a stationary PC there are no drawbacks.
However, I see the point for using the extension on your mobile device. Adding one star :)

one of the best add-on for people who lives in EU

Does what it says. Sometimes the "maps" tab button appears as if it's selected (underlined).
Other than that, works perfectly

Does what it should. There's a small visual glitch as of few days ago: when "All" button is selected (it's underlined), the "Map" button looks like it's selected too (it's underlined as well). When any other button is selected (Images, Videos, News... ) then "Maps" button is not underlined.