Varför fungerar inte mitt Bank id med Firefox när det fungerar med andra webbläsare

This sounds more like a website issue. Contact the bank and have your account checked. Make sure you are entering the account numbers/passwords correctly.

I think it`s somthing wrong in Firefox. Explorer and Googlechrome preform the acction proper Regards J-O Lundgren

Is the user/password entered in the Password Manager? Reenter the information manually. Many site issues can be caused by corrupt cookies or cache. * Clear the Cache and * Remove Cookies '''Warning ! ! ''' This will log you out of sites you're logged in to. You may also lose any settings for that website. Type '''about:preferences'''<enter> in the address bar. * '''Cookies; ''' Select '''Privacy. ''' Under '''History, ''' select Firefox will '''Use Custom Settings. ''' Press the button on the right side called '''Show Cookies. ''' Use the search bar to look for the site. Note; There may be more than one entry. Remove '''All''' of them. * '''Cache; ''' Select '''Advanced > Network. ''' [v57+] Select '''Privacy. ''' Across from '''Cached Web Content, ''' Press '''Clear Now. ''' If there is still a problem, '''Start Firefox in Safe Mode''' https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode A small dialog should appear. Click '''Start In Safe Mode''' (not Refresh). Did this help? While you are in safe mode; Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches. ''[https://support.mozilla.org/en-US/kb/forum-response-disable-hardware-acceleration How to disable Hardware Acceleration]'' {web link}