Directory / plugin
Sitewide (Admin) Header/Footer
v1.1 · by Philipp15b
Change the header/footer of the front- and backend of WordPress Multisite
About this plugin
This plugin allows you to add your code/text to the headers and footers on all the blogs in the blog network and in the backend of all blogs too.
In addition, it is possible to replace the footer bar text in the backend completely.
You can access the settings under Network Admin -> Settings.