Starting today, all builds in Google Chrome's dev channel will have extension support enabled by default—meaning Chrome is one step closer to the kind of extensibility that keeps Firefox die-hards from switching.
Not that extensions is the only thing that keeps users loyal to Firefox, but from what we've heard around the water cooler, that is the case for a lot of folks frustrated with Firefox memory bloat.
Google pushed out some sample extensions a while back (most notably the previously mentioned Gmail Checker), but now users no longer need to add that pesky --extensions-enabled switch to the end of their Chrome shortcut in order to get extensions working.