i looked at the graph and it seems like the speed of firefox is way more stable. At the moment i think the normal speeds are equal. Chrome has sometimes very big spikes in booth directions (the grey dots on the right sides that seem to be out of order) so the fastes from the records is still chrome, on this one specific date
but it is under the: GNU Affero General Public License v3.0 Permissions of this strongest copyleft license are conditioned on making available complete source code of licensed works and modifications, which include larger works using a licensed work, under the same license. Copyright and license notices must be preserved. Contributors provide an express grant of patent rights. When a modified version is used to provide a service over a network, the complete source code of the modified version must be made available.
So he cant revoke anyone of using the software he contributes