It is no secret that Yandex, with a hammered step, goes towards adware. The so-called "Taste of Yandex" compulsively trying to get up with everything. It seems that on some kind of affiliate / paid basis, Yandex provides developers with the option of repackaging the installer program with third-party services. Ie you downloaded for example IrfanViewer, but it is still hidden, you still hung Yandex bar.
The practice of paying for installations is inherent in adware. But it’s a shame when the tick “I agree to put this murkiness and generally agree on everything, everything” is hidden in the wilds and is often visible only with a Custom installation.
A couple of days ago my firefox was updated, in which there was not even the smell of Yandex, and now, by default, I still have Google search, but when I search through the address bar I am persistently throwing it on Yandex.
Looked in about: config

')
I'm indignant, what kind of vegetable gardens Yandex crawled into the browser?
In any case, change the value to "
www.google.com/search?ie=UTF-8&oe=UTF-8&sourceid=navclient&gfns=1&q= "