We just released 0.5.3 today, so be sure to update to see the new art.
How to update:
Sometimes you'll be notified of an update automatically. If you want it to happen right now, do the following:
- In Firefox click on Tools in the menubar. Then choose add-ons
- A window with a list of all your plugins will appear. Click on "Find Updates" in the bottom left corner.
- Once you see that an update is available, click the "Install Updates" button and let it download.
- Once the plugin is downloaded, click on the "restart Firefox" button.