Gave it 5 stars, of course..... But! It's missing a lot:
1. Delay settings when using the right mouse button. To be able to open the standard menu.
2. As you have already noticed - you need settings for search engines and translator.
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Поставил, конечно, 5 звездочек... Но! Очень не хватает:
1. Настройки задержки при использовании правой кнопки мыши. Чтобы можно было открывать стандартное меню.
2. Как уже заметили — нужны настройки
поисковых систем и переводчика.

I have used mouse gestures from Opera v4 and Firefox FireGestures, to crxMouse or smartUp in Chrome, but I had never tried the circular menu of Opera v12. I have to say that I really liked this new way of interacting in navigation, it seems to me an advance in speed, simplicity and clarity. The implementation for Chrome and Firefox is excellent, everything works very well and with many options to suit all tastes. Thanks for your great work Max.

Great extension, would love if it got support for touch input!

Work seamlessly!

add reset-key to default setting, please

Export-import missing
Restore default settings all, regular-link-etc, for each buttons
Only predefined functions, and no keyboard macro shortcuts, menu functions
Configuration by URL (sites, regex)

Good work