This is the login page for income tax return. Translation from the info page at http://www.rsv.se/e-tjanster/efd/teknik.html: You cannot use the eFD service with other operating systems than Windows (95, 98, 2000, NT, ME, XP) , Mac, and Unix (Linux, SunOS, HP-UX, FreeBSD och BSD).
The system is currently offline and will not be open again until next income tax return report period - that's in next spring. The teknik.html page is still there, but it's not linked. They've said theyre going to expand the system until next time - but no one know what they mean by that. Maybe it's time to write them a email and ask. Contact information: firstname.lastname@example.org
This problem has been solved. I could use the declaration form with Mozilla for OS/2 now. The site has been reorganised so the old links don't work.