You can also try these related scripts:

• Remove Ad Banner on "Yandex" - Simple but effective banner remover
• Alternative search engines 2 - Adds search on other sites for google, bing, yandex, duckduckgo
• serpFilter - Remove crappy yandex zen (and any other sites) from yandex and google search results.
• Ya YouTube search - Search videos on YouTube from Yandex page.
• Bye Bye Pinterest - Hides Pinterest from search and Image results