On my Windows machine, firefox.exe has been running since 14th of February, and I'd estimate it takes less than 2 seconds between Ctrl+N and registering me typing in the default home page search box. Of course, Ctrl+T is much faster.

Among my extensions are Classic Theme Restorer, Cookie Controller, FireGestures, RefControl, Status-4-Evar, Tab Mix Plus, Tree Style Tab, uBlock Origin, FoxyProxy amongst several others - this isn't a lightweight installation.

Chrome isn't competitive with Firefox + Tree Style Tabs, so there's little risk of me switching any time soon.