I think for long term adoption of this project - I 'REALLY" hope that someone develops a plug in or something for SAFEnetwork to work with Chrome. And make the process extremely user friendly. Set up mock user groups from all age groups to get ideas on UX ideas that make it easy for them. Ages 10-45 should be the target audience.
A chrome plug in with extremely user friendly UX design would be a good start. That would bring content on to the network as well. Or may be a website like Safenet.com or something where people can sign up and start using safe internet, store files etc. Everything else runs on the background. Once people get comfortable with using SAFE network, they may move to using SAFE browser and mobile browser etc. Asking to use SAFE browser upfront may turn back many users as most are non-technical and their habits wont change easy. And would make the adoption of SAFEnet weak - in my mind.