Google Chrome has posted a notice that the Cricut plugin will soon be unsupported. Do not be alarmed, a Cricut update will be released shortly to resolve this issue.
Link your cartridges, and use them too
Even after you've linked your cartridges to Cricut Design Space™, you can still use them in machines that utilize cartridges (such as the Cricut Expression® and Cricut Expression® 2). It’s the best of both worlds!