YouTabs 作成者: Jiří Kuba

This extension is basically search bar for searching guitar tabs on 911tabs.com.
But when you are on supported site extension will prefill song name for search.
Supported sites:
https://www.youtube.com/
http://www.imdb.com/
http://www.csfd.cz/
Extension is free.
Source code: https://github.com/jiriKuba/YouTabs