Add-on Compatibility Reporter has been updated to version 0.9.3 earlier today. This update addressees issues with the Add-on compatibility checking not being disabled when updating to Firefox 10 Aurora and/or Thunderbird 10 Earlybird builds. Simply go into the Aurora or Earlybird Add-ons manager, right-click on Add-on Comparability Reporter and select Find Updates. You can also update via AMO.