I am working on a Mozilla Firefox Add-on licensed under the MPL-2.0, and just got asked by a user if I have a version for Google Chrome. I'd like to say yes and accommodate this request. However, before investing the time and energy to learn a new environment, or getting user hopes up prematurely, I need to know if the MPL-2.0 license is compatible with the Google Chrome Web Store Agreement or License or whatever they call it. Although I just had found something which seemed pertinent, I was not sure if it was the right document, and I can't seem to easily find it again.
I am not the original creator of this add-on, but am in communication with the creator, who has given me full developer access on the AMO site, posting privileges on the Facebook page, and is likewise open-source aware and friendly, and supports my efforts to revive his project.
My primary objective is to develop this as free software for Mozilla Firefox, and leave behind code that others may learn from or contribute to. My secondary interest is to expand platform coverage to other browsers to meet user needs. My third wish would be to allow for possible monetization in the form of voluntary contributions of a user-selected amount with a developer-selected minimum that is reasonable (i.e. to cover cost of transaction and leave some behind). Any donations would probably go to expansion of online presence or some incentive or compensation to others who provide a service outside my core area of expertise (i.e. legal fees - if any, hosting, graphic design, SEO, etc).
If not strictly compatible, can I expand my options with licensing flexibility? I.e. if I can make the case to the creator and he agrees, perhaps dual-license the project, a separate license depending on the platform, etc.?