Mozilla needs to get back to just being a browser project with foundation-based corporate governance.
I don't get why everything has to include the latest trend. Do what the Linux kernel project does: be a bazaar. If someone wants to create deeper AI integration into Firefox, they'll pick up that task, put it in a branch, and the community will discuss whether it merits inclusion in the main. If it does, it'll be there; if not, it won't be.
Operate on donations of time and money with a clear goal of what the project should be.