It is very cool! I'd go as far to say it's a great browser in fact. I simply want it to exist and be such in perpetuity and lead by example like it has in the past. I see it as a follower instead of a leader these days, largely to Google, but also Safari and to some degree Edge (by simply stealing the blink renderer)

The Mozilla org continues to produce a very capable browser, but it's now 3rd or fourth fiddle on a stage their misteps helped orchestrate in their demotion.

Edit: clarification