According to a recent study by Mozilla, the number one reason for users not upgrading from Firefox 2 to Firefox 3 was the new location bar, and the fact that it went deep into people’s bookmarks to suggest sites as they typed. More than 25 percent cited this as their reason for keeping the last generation of Firefox as their browser of choice.

“When we expanded the capabilities of the location bar to search against all history and bookmarks in Firefox 3, a lot of people contacted us to say that they had certain bookmarks they didn’t really want to have displayed,” said Firefox’s principal designer, Alex Faaborg. “In some cases users had intentionally hidden these bookmarks in deep hierarchies of folders, somewhat similar to how one might hide a physical object. Having something from your previous browsing displayed to someone else who is using your computer (or even worse) to a large audience of people as you are giving a presentation, is really one of the most embarrassing things that Firefox can do to you.”

On a related note, Mozilla has introduced a private browsing mode in Firefox 3.5. So, you know, if this is the sort of thing you need to have – it’s safe to upgrade now.

Now that people wearing white earbuds has become the norm, it looks like inventor Kazuhiro Taniguchi is planning to make us all look goofy again.

With the announcement of some new earbuds that allow facial expressions to let you work your gadgets, there’s a small chance that we’ll be making funny faces for all the right reasons. According to Taniguchi, “You will be able to turn on room lights or swing your washing machine into action with a quick twitch of your mouth... An iPod can start or stop music when the wearer sticks his tongue out, like in the famous Einstein picture. If he opens his eyes wide, the machine skips to the next tune. A wink with the right eye makes it go back.”

While the idea of it is pretty neat, something tells me that most markets won’t be willing to go through this just to skip a track on their favorite playlist.

Yep, you read that headline right, Burger King is offering a free Whopper to anyone that will delete 10 of his or her Facebook friends.

Going along with their string of strange marketing campaigns (read: The King), Burger King is offering the free Whopper alongside their Facebook app. Once the app is installed, you can delete 10 of your friends for a coupon good for one free Whopper. It’ll even update your friends that haven’t been deleted on the activity feed, for example, “Andy Salisbury sacrificed Norman Chan for a free Whopper.”

Sadly, the promotion is only good for one free sandwich, so folks with thousands of friends won’t be able to stock up for the recession. Oh, and to my Facebook friends, if I delete you it’s nothing personal – I’m just hungry.