Vimium is mainly for in-page keyboard interactions (like opening a link or scrolling down). Ferro is for interacting with Chrome itself, for instance pinning a

Vimium is mainly for in-page keyboard interactions (like opening a link or scrolling down). Ferro is for interacting with Chrome itself, for instance pinning a tab, saving/opening sessions, extension management, deleting bookmarks, etc. Ferro does not suffer from the same keyboard shortcut problem as Vimium. Vimium injects code into every tab you have open (called "content scripts" in Chrome extensions) and uses javascript key listeners. Ferro uses the recently-introduced Chrome keyboard shortcut API. To manage your keyboard shortcuts for all extensions that use the API, go to "chrome://extensions" and click the "Keyboard shortcuts" link on the bottom-right.