You will need to install a user script manager extension to install this script.
On 1st August 2013, the controversial extended copyright for press publishers was introduced in Germany. This userscript warns you with a red box in the upper left and with (LSR) in the page title if you enter a site of a press publisher which supports this extended copyright. The blacklist was published by D64 and is reloaded every day by the script.
Successfully tested with: