The Mozilla of 2004 is not the Mozilla of today. With unnecessary proselytizing/virtual signalling, implementing features antithetical to their values (Pocket integration, switching to WebExtensions), pursuing wasteful and fruitless endeavors (FirefoxOS), the company has completely strayed from its main focus: building a solid, open, and free browser. I'm still with them, but I'd be lying if I don't strongly consider moving to Brave every time they come out with actual innovative and exciting features like this.