Personalized branding?

[quantumzedno]

Hi there, i wasn't sure where to ask this so apologies if this is the wrong spot.

I'm running a POC for a self hosted Firefox Send setup for use internally as a secure file transfer between us and clients and was wondering if 1. we would be allowed to alter the branding on the site without breaking the license agreement, and 2. if so what is the ideal way to do this?

Thanks in advance!