Hi there, You're currently posting in the English forum and we can't guarantee that a community member who speaks your language will be able to assist you here. That said, can you elaborate on your title? What do you mean you can't scan on your Firefox mobile? When posting questions, it's helpful to include information such as your operating system, browser version, specific error messages, and the steps you've taken to try solve the issue. This kind of context allows the community members to provide a more accurate and effective solution. Looking forward to your update!