Duplicating a fix provided by the recently released Firmware Update 1.6 (see “SMC Firmware Updates for MacBook, MacBook Pro, and MacBook Air,” 31 January 2013), Apple has released MacBook Pro SMC Firmware Update 1.7 to target a range of specific models — both 15- and 17-inch MacBook Pro models released in mid-2010 and early 2011. Like the previous update, this one addresses a “rare issue” that caused laptops with a battery that had accumulated more than 1,000 charge cycles to shut down and possibly fail to boot back up again. As always with firmware updates, we recommend relying on Software Update or the App Store app to ensure you get the firmware update for your MacBook Pro, and being careful not to interrupt the update process. (Free, 1 MB)
Mac OS X Zip Expanding Utility
Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.