Wouldn't it be great to have our passwords and main password safely exported and stored on cheap (or expensive) simple USB sticks, instead of on the computer. Much more simple and cheaper than the complicated and expensive Yubykeys? A simple, accessible and affordable safety feature.
(I now have a simple Libre Office Base list of all my passwords, encrypted on my desktop. Decrypt, copy, paste. Could be on a USB stick too, instead of on the desktop.)
I guess it's not a complicated function to add to Firefox for those great programmers at Mozilla.