It’s really not. The people who invented the term “artificial intelligence” both meant something different than you’re thinking the term means and also thought human level intelligence was far simpler to model than it turned out to be.

You’re thinking of intelligence as compared to a human, and they were thinking of intelligence as compared to a wood chipper. The computers of the time executed much more mechanical tasks, like moving text into place on a printer layout.
They aimed to intelligence, where intelligence was understood as tasks that were more than just rote computation but responded to the environment they executed in. Text layout by knowing how to do line breaks and change font sizes. Parsing word context to know if something is a typo.
These tasks require something more than rote mechanical action. They’re far from human intelligence, and entirely lacking in the introspective or adaptive qualities that we associate with humans, but they’re still responsive.

Using AI only to refer to human intelligence is the missuse of the term by writers and television producers.

The people who coined the terms would have found it quaint to say something isn’t intelligence because it consists of math and fancy scripting. Their efforts were predicated on the assumption that human intelligence was nothing more than math, and programming in general is an extremely abstract form of math.

https://www.mozillafoundation.org/en/donate/ if you’re actually interested in donating.

Right now browser usage patterns are shifting because people are trying new things. Most of those new things are AI integration. If those new things prove popular or have staying power remains to be seen.
Firefox , in my estimation, is looking to leverage their existing reputation for privacy focus while also adding new technologies that people seem at least interested in trying.
A larger user base means that people will pay more for ads, which if they maintain their user control and privacy standards users are less likely to disable on the default landing screen.

It’s why they keep getting flac for working on privacy preserving advertising technology: they want you to use Firefox because they don’t stop you from disabling the bullshit, and they hope to do the bullshit in a way that makes you not mind leaving it on.

All the AI stuff was mentioned in the same context as discussion about how they need to seek money in ways that aren’t simply being paid by Google.

Their CEO makes more than I think CEOs should earn in general, but the rest of their executives earn relatively normal to low salaries for their roles and the sector.

Non-profit doesn’t mean everyone works for free.

But that’s just saying that instead of using Firefox and not turning on the feature, you’ll use a less maintained version of Firefox where they didn’t enable the feature. I don’t feel like those projects have much value add in the privacy spectrum compared to Firefox, particularly when one of them was owned by an advertising company, and neither of them actually has the resources to maintain or operate a browser in isolation, which is a major concern regarding security and privacy both.

A very vocal portion of the user base, but we don’t actually know what absolute portion cares. I’m personally unlikely to use possible AI features outside translation, but Mozilla has generally done enough that I don’t feel particularly worried they’re going to mess with my privacy or force me to use a feature I don’t want.