As far as I can tell, both browsers have basic learning algorithms that are supposed to predict better over time what site you want (in both Chrome and Firefox

As far as I can tell, both browsers have basic learning algorithms that are supposed to predict better over time what site you want (in both Chrome and Firefox I can now just type 'n' to get to Hacker News). However, even though I currently use Chrome as my primary browser, I think Firefox still gets this slightly better - I think it learned more quickly and accurately for me at least.