If I login into Piwik with referers disabled (Firefox addon RefControl), Piwik says:
[quote=“Form security key is invalid or has expired. Please reload the form and check that your cookies are enabled.”][/quote]
First of all, this message is wrong, because I have cookies enabled.
Second, I want to use Piwik with referers disabled. One reason for this wish it that when clicking on a providers my referer is shown in their statistics.
Finally, I want to say thank you to the piwik developers. I will probably switch from Google Analytics to Piwik.