OP writes “instead of their american counterparts”, and then puts signal.
Firefox as well any opensource doesn’t have a country. You can build it and use it. Avoid any centralized service.
The 4 freedoms of software are:
Freedom 0: The Freedom to Run
You can use the software for any purpose, without restrictions.
Freedom 1: The Freedom to Study and Modify
You have access to the source code, allowing you to study how the software works and make changes to suit your needs.
Freedom 2: The Freedom to Distribute Copies
You can share copies of the software with others, whether for free or at a cost.
Freedom 3: The Freedom to Improve and Share Improvements
You can modify the software and share your changes with the community, helping others benefit from your improvements.
as long as these freedoms are observed it doesn’t matter the country of origin.