No, lets say you did a google search in firefox by selecting url through CMD + L, then the search results come in you can navigate the page with space bar i.e., up and down and then if you find a link relevant to your search then just type (') apostrophe key and you get a search box for quick link (links only) type a few letters/words unique to the link and see if the particular link you want has been highlighted and then press enter.
It's pretty seamless and doesn't require mouse or trackpad to navigate the browser.