Seems to have a bug with the extension pointing to an unrelated website under the Special:Version page.
Topic on Extension talk:CookieWarning
Appearance
It indeed points to DroidWiki, which is the wiki of the extension's developer. I also think that it will be better to point the link to the extension's docu. In the end a matter of taste. @Florianschmidtwelzow: FYI.
Oops, my fault! See task T201076