Sure, but finding more partners is crucial for long term survival, so if Mozilla never reaches out to anybody for fear of offending Google then they're always gonna be stuck in this sort of abusive relationship. Becoming so reliant on Google in the first place shouldn't have happened, but it's better to start fixing that sooner than later. It's also worth noting that the main reason Google funds FF is to protect themselves from antitrust litigation. As long as FF is around and gets a bit of usage, then Google can point to it to say that Chrome isn't a browser monopoly.