Two questions my dad would have if I showed this to him:

- How do I pronounce this?

- What does "poly-browser extension" mean?

It doesn't matter that it's cross-browser or even that it's an extension. Those are descriptions of the technical architecture. What matters is how it makes my life better: it improves Gmail by getting rid of ads, etc.

Perhaps my dad isn't your target audience. But it might be worth testing an alternate design that includes more accessible copy.