Earlier quoted context omitted.
I distinctly recall Servo presentation in 2012. It started: "web browsers are written in C++. It is bad for humanity." Web browsers are still written in C++. It is still bad for humanity. Emphasis on mixred reality may or may not solve that problem sooner. Sometimes the quickest way can seem roundabout. But I am skeptical.
I think, that does actually work out. The problem for humanity is not that browsers are written in C++, it's that browsers have lots of security vulnerabilities. Being written in C++ is not helpful with that, but it's not integral to the problem. It's not impossible to produce C++-code that doesn't have vulnerabilities, it just requires a lot of effort and often years of battle-testing to close all of them. But Firef…
Firefox is not safe. It’s been routinely exploited by law enforcement and hackers alike.