mise.
Tell it what you want to eat this week. It fills your Coop or Migros basket.
Firefox asks once whether to add it. Say Add, and Mise opens beside your tabs. It keeps itself up to date after that.
Mise lives in Firefox. Open this page there to add it:
No Firefox yet? Get it here, then come back.
Mise works on a laptop. Open this page in Firefox on your computer: