Hi!
I love SGP and use it as a bookmarklet in Opera.
I'd really love to see SGP as an Opera extension!!! I think Opera extensions don't have the security holes of DOM and js...
There already are 2 Opera extensions related to passwords:
LastPass
https://addons.opera.com/addons/extensions/details/lastpass/1.73.9/?display=enRandPass
https://addons.opera.com/addons/extensions/details/randpass/1.0/?display=enI'm a Windows developer, not a web developer. So I would not be of much help...
Follow reading:
Opera extensions list:
https://addons.opera.com/addons/extensions/Opera extensions - quick documentation overview:
http://dev.opera.com/articles/view/opera-extensions-quick-documentation-overview/Converting UserJS to Opera Extensions:
http://dev.opera.com/articles/view/converting-userjs-to-extensions/All the articles about extensions development:
http://dev.opera.com/articles/extensions/Keep the good work!