Strong random password generation suggestions has been an awesome feature introduced in Firefox.
Unfortunately I almost never use it because the suggestions are not strong enough by my security standards. From what I've seen Firefox suggests 15 alphanumerical passwords whereas my passwords are usuall 32 or 64 char (with special characters) unless the site doesn't allow it.
So I always need to fallback to "pwgen -nsy 32" or similar. It would be great to be able to customize it.
I looked several times in about:config for a way to do it, but either didn't find it (neither in documentation) or the feature doesn't exist.
Thus my proposal is: allow for customization in about:config for strength of suggested passwords.
Bonus: suggest several passwords, not just one (suggest one that has special characters and long, one just long, another short etc.) This was it will allow for options when picking a "strong" password for a specific site.
Bigger bonus: have a way of scraping the website and detecting the password limits and generate the strongest passwords that the specific sites allows.