Firefox had some issues like a decade ago on their old engine. In the past few years, they seriously stepped up their game.

If you're a normal user, you probably won't even notice the difference between Firefox and Chomium-based browsers. Sometimes I come across a weird website that doesn't want to load properly, so I'll open a Chrome tab for a few minutes to access it, but that's increasingly rare.

For web development, I generally prefer Chome's debug tools, but do all my normal browsing with Firefox.