1. Define a policy for Site Patching.
2. Determine what is and isn't possible today via XPCOM; file bugs where needed
3. Build a prototype for UA overrides4. Develop infrastructure to validate if patches are still needed, or are still working (i.e., once a week) 4. Build a prototype for UA overrides 5. Intent to Implement (see https://docs.google.com/document/d/1x27I7hAmWDWiqk3o3YC3fklhE3N59bdgHCQHF5p_lkU/edit#heading=h.d5s8g8tyi5zs)