Navigating the page
?: Show the help dialog (the same with google reader) j: Scroll down k: Scroll up h: Scroll left l: Scroll right gg: Scroll to the top of the page G: Scroll to the bottom of the page u: Scroll a half page up d: Scroll a half page down
Manipulating tabs
K or gt: Go one tab right J or gT: Go one tab left t: Create new tab x: Close current tab X: Restore closed tab
Open something
f: Open a link in the current tab F: Open a link in a new tab o: Open URL, bookmark, or history entry O: Open URL, bookmark, or history entry in a new tab
Search & Find
/: Enter find mode n: Cycle forward to the next find match N: Cycle backward to the previous find match
Navigating history
H: Go back in history L: Go forward in history
Miscellaneous
r: Reload the page
yy: Copy the current URL to the clipboard yf: copy a link url to the clipboard
gi: focus the first (or n-th) text input box on the page
gu: go up one level in the URL hierarchy
gf: Cycle focus to the next frame ( you can use this to get out of text input box in a web page) i: Enter insert mode gs: View page source
Reference: https://github.com/philc/vimium
For Firefox, the VimFx is recommended. The "Vimium" is poor in functions, which not support "go to next/previous page" and some other important shortcuts.