Google Chrome is more than a comic book.
no mention made whatsoever of any ability to extend it client-side
It's possible that they might add some extension support, but it also seems perfectly likely that they would just support Gears and the standard new offline/storage/etc. APIs, which are nice for web applications to use but offer none of the advanced functionality (user interface modification, file I/O, stream handling, sockets, external process support...) that Mozilla provides and Zotero uses.
add an explicit FAQ entry about Chrome