Hello everybody,
I am building a (yet another) calculator App. This is my first post here, I enjoy the fact Mozilla uses Discourse! I hope this category suits my needs. Otherwise just tell me.
Edit: I solved my problem, so here is my app’ 
- Marketplace: https://marketplace.firefox.com/app/ffos-calculator/
- Source: https://github.com/Bahanix/ffos-calculator
- Try it: https://bahanix.github.io/ffos-calculator
https://marketplace.cdn.mozilla.net/img/uploads/previews/full/156/156673.png?modified=1415662382
Thank you :octocat: