It just requires a few changes to Firefox.
From Firefox: non-Vimperator way to do mouseless browsing?:
- Set to on: menu Tools/Options/Advanced/tab General/Accessibility/Search for text when I start typing
- Set option to only go to links; in address bar enter: about:config, followed by Enter. Then: press "I'll be careful, I promise", find the line accessibility.typeaheadfind.linksonly, select it and change the value to True by either hitting Enter or Shift+F10/Toggle (accessibility.typeaheadfind.linksonly is on line 11 when I tried).
- Turn off case-sensitivity. Set accessibility.typeaheadfind.casesensitive to 0 (same procedure as for accessibility.typeaheadfind.linksonly, see above. When Enter is pressed a dialog box will appear with the current value. Type 0 and press Enter).