Test your site
It is critical to find and fix Firefox regressions before Firefox users visit your broken site. Mozilla is offering Firefox Developer Edition, so please use this alpha version daily to develop and test your website or web application.
Please report any regressions you encountered through one of the following ways:
- Social media: Tweet us the URL of your problematic site. You can also send us a direct message via Twitter.
- GitHub: If you have a GitHub account, it might be easy to file a new issue on our repository.
- Email: Simply drop us a line at firstname.lastname@example.org.
Improve the documents
If you find a mistake on our document or something not covered yet, please tweet us or file an issue to help us improve our useful developer resources. You can also send us a direct message via Twitter.
Together, we build a better Web!