Every time I post on a friends wall, it adds "xx minutes ago near (location)". How do I turn off this feature? I know that FB Mobile can show locations, but I'm using a Macbook! All I find through their help center is info about graphs and mobile apps.

On your News Feed page, when you click on the "What's on your mind?" box, at the bottom of the box theres an option to remove the current city (to the right of the two icons:add friend/add place). I just discovered it today, so I hope it removes it permanently. Hope that helps!