Browsers. Firefox hasnt given me reason to doubt. Yet. And I find that odd. Still uses it. Because every other big browser have given me reasons.
Generally “free” stuff from big companies is giving me more and more the heebie-jeebies. Even if they have good reputation. But there’s NO WAY I could ever pay for everything I use. Nor donate to every deserving person who has given their free time to create and publish FOSS.