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.

The plugin is good, and pretty useful. The only downside is that there's no link to the source code with an issue tracker, e.g. a github page, where users could submit bugs and PRs. I already have one, but you can't use reviews for bug reports.

thank you for that addon, just what i needed. was really annoying not to be able to click on the map in google search

Thank you very much!

i want to kiss you on the lips

<3

Bardzo dobry dodatek 5/5 gwiazdek, działa jak trzeba! Pyerdyolona Unia i jej zakazy i nakazy w imie nie wiadomo jakiego dobra skutkowały usunięciem guzika "Mapy" w wyszukiwarce...
Jeszcze raz dziękuję.

Thank you! Works

It works!

I reviewed the code of version 1.20. It looks solid. The required link injection uses some very specific DOM elements and may break when Google changes their search result page too often.

P.S. You can download the code with right-click > "Save as ..." from the "Add to Firefox" or the "Remove" button. The file is a zip archive (rename, extract, then open the folder in your IDE for review). Not sure why Mozilla does not make the main scripts of extensions more reviewable here.