Does Lockwise support easy import/export of passwords from/to other password managers? I'd like to use it, but I really don't want to put all eggs in one basket.

Can I associate one login/password pair with multiple domains?

I don't think it supports import or export. One login can indeed be saved and used over multiple subdomains.

Firefox without addons is like pizza without tomato sauce. Sure you can do it, but...

You don't enjoy the occasional white pizza? I'd say it's more like pizza without cheese...but you can do that too. Tomato Pie's are pretty good every now and then. How about pizza without toppings? Some restaurants even call toppings add-ons.

I think of it more like supporting a local pizzeria. Firefox gets me 100% there on my desktop and using it on iOS sends Apple some sort of number that I prefer using it over the stock browser.

I still remember Firefox around its version 1.5, where you literally couldn't use it without extensions, even some basic things like Tab Recovery was only available through them.