yle.fi broken
The YLE web site (one of the top .fi sites, the national broadcasting comapny) doesn't work with HTTPS Everywhere enabled in Firefox. It shows an error message, probably running services unrelated to the public site on the https side.
See eg. http://yle.fi/uutiset/news/
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information