re4ctor

It does all of that on Nightly. Will get to release in a couple of months.

More details on the mac improvements https://mozillagfx.wordpress.com/2019/10/22/dramatically-red...

That then gets into the ethics of should privacy only be for the wealthy

Doing that for a binary release that is in dozens of platforms, configurations, locales, etc. is incredibly time consuming. Uptake on binaries is also usually on the order of days-weeks before most of your user base is up to date. It's easier for say a website or service that can deploy to millions of users within minutes.

The problem there is February 1st isn't always a good release day, say if it's a Saturday. So you'd ship on the 2nd or 3rd sometimes... or sometimes that's a holiday, or there are validate reasons to avoid a period (like the first ~week of July or September). You could try to pick something like the "2nd Wednesday" of the month, but there are still occasions for mid-week holidays and other timing problems related to marketing or external events (other announcements, or world events that would clobber your marketing push). Inevitably you have to plan it anyway, so you might as well do that from the start.

The amount of work to improve Firefox for Android basically meant a rewrite was needed, hence Firefox Preview being the eventually replacement when it's fully ready

What do you propose Mozilla do now to build a better browser?