I found the package libp11-kit-gnome-keyring in Synaptic and it helped. Now i
can access sites i couldn't. But when i enable Javascript on those sites,
they disappear and the message is:
pkcs11:library-manufacturer=GNOME%20Keyring ,
pkcs11:library-description=PKCS%2311%20Kit%20Trust%20Module
This also happens at Trisquel wiki pages.
Earlier, when i tried several times in a row, a Trisquel wiki page was
displayed in the end. I have the impression that Midori is not very reliable.
Often i have to do things twice to make them happen. Sometimes it seems like
there is a problem but when i enter the same address again, it works. The
same goes for auto-completion. Sometimes the browser doesn't offer me
anything when typing an url, and sometimes a huge list appears immediately.
I have also created the file .xinitrc. It's in my home folder, but it doesn't
seem to help. Should it be somewhere else?