Sure. Could you just write a patch implementing the solution? I'll then open a pull request submitting your patch, to save you some work. ;-)

In practice, this only works if you provide the password manager that will be chosen once and for all.

zaarn's suggestion "providing an interface for password managers" is an interesting alternative.

Haha, it was just the attitude I'm seeing suggests that we're somehow at the behest of Mozilla engineers and we just have to wait, but that's one of the great benefits of open source, we really aren't.

And I haven't looked but I imagine changing the encryption algo isn't a huge task, I wasn't suggesting that a non-Mozilla worker implement something huge like zaarn's suggestion, which fwiw I think is awesome as I don't use FF built-in password manager and find it just gets in the way.

My guees would be changing the algo is trivial, but insuring smooth upgrades is not.

I looked into this a while back and remember about as much. I think it was also in the category of things that was harder to change with legacy addons than it is now.