Yes, I'm a Firefox user, and when I install extensions I don't expect being asked to provide a login and password. I'm definitely NOT comfortable with Google knowing what extensions I use, when I use them, etc. A nice reminder of one of the reasons I can't seriously consider Chrome as my main browser.
1) Chrome extension (I understand the stand-alone application is coming)
2) Vim-style modality missing (exact keybinding replication is not necessary, just the principle of remaining on the home row)
3) Excess editor chrome - the top of the editor takes up 2 lines when it could be compacted to 1