Hi I am sorry, but I do not know what you mean by "investigations". Creative Commons is a licensing system that allows authors of content to make their works for free subject to controls over the use of the content. You can learn more about it [https://creativecommons.org/ here]. Firefox for Android is an application for Android mobile devices that allows you to browse the web and (whilst doing so) manage your privacy and data. Mozilla makes Firefox for Android and has a wider mission to help make the internet open for all. You can read more about us [https://www.mozilla.org/en-GB/about/ here].