This thread is resolved. Here is a description of the problem and solution.
Problem: My footer is not translating to French when I am in French Page. - how to translate the footer or how to translate the widgets in the footer
Solution: Just use this feature: https://wpml.org/documentation/getting-started-guide/translating-widgets/displaying-different-widgets-for-different-languages/ This will be easier and convenient.
This is the technical support forum for WPML - the multilingual WordPress plugin.