Best way to search the web since the 2010 is creating Firefox bookmarks for each web service individual. For example, instead of using the Youtube web interface, create the following bookmark.

name: youtube

url: https://www.youtube.com/results?search_query=%s

keyword: y

usage: ctrl+l y <space> what-ever-i-want-to-search <enter>

Works for many sites: archive.org, booklooker, cve registers, duckduckgo images, openstreetmap, wikipedia, google.

Extra plus: Only Mozzila can fingerprint how I type my keyboard.