We're definitely going to be expanding beyond Chrome to Safari , Firefox, and likely Edge once it has extension support. At the moment, we're still in feature

We're definitely going to be expanding beyond Chrome to Safari , Firefox, and likely Edge once it has extension support. At the moment, we're still in feature development with the product, and Firefox is in the middle of changing its extension platform, so we're trying to get the right timing with porting things over. We should have it soon though!