Prevents Google and Yandex search pages from modifying search result links when you click them.Google and Yandex search pages have the annoying habit of changing the result link when you click it. So if you right-click the link in order to copy it you get some gibberish instead of what you wanted.

This extension disables that behavior – on any Google or Yandex domain, without having to configure anything. Simply install and enjoy! As an added bonus, the search engine can no longer track your clicks.

https://addons.mozilla.org/en-US/firefox/addon/google-search-link-fix/