- Chrome doesn't support bookmark shortcuts; I use SuperGenPass in FF as a bookmark with a shortcut of "p", so in any form, rather than needing to click the mouse, I can do Ctrl-L, p, enter
- Chrome doesn't "support" unorganized and tagged bookmarks like FF3 does. I like being able to file/search bookmarks by tags, separately from a small hierarchy of most-used bookmarks on the toolbar.
- Chrome doesn't support bookmark separators, which are a "nicety" for organizing bookmarks in folders on the toolbar. Something small like that really does help with visual recognition and hand-eye coordination.