extensions modules

Firefox design refs:

- https://addons.mozilla.org/en-US/firefox/extensions/
- https://addons.mozilla.org/en-US/firefox/extensions/category/social-communication/
- https://addons.mozilla.org/en-US/firefox/addon/power-thesaurus/



.... maybe better single page ref: https://marketplace.stripe.com/apps/forminator-stripe-app


- [ ] and make a submit thing with $ upsell and badges