I specified https://yandex.ru/search/?text=, but addon uses https://yandex.ru/search/?q=
I'll look into this.
Tried to investigate this futher but I'm having no luck. Especially since I can't get past this captcha test during my experiments. Some search engines just won't work with this project.

(It's especially difficult since some of the words it shows me have Russian letters which I can't type out)
Sorry, closing as I can't do more.
Tried to investigate this futher but I'm having no luck.
The problem is that the input has static name="q". An option to change that or getting the content from the input with JS and going to the url + text in the input would fix the issue.
e.g.
form.submit = () => {
location.href = searchUrl + document.querySelector("[name=q]").value;
};
Wish I knew that much earlier. I've made that attribute a control in the menu.
Seems to be working:

It's on master now. Will be out in the next release.
Thanks!
This feature is now on live 馃憤