yum install gnome-shell-browser
This shows up on about:addons as “Gnome Shell Integration”
There may also be an extension, by the same name. It needs to be disabled/removed
Going to https://extensions.gnome.org without this setup correctly will display a message about not being able to connect to a disconnected port OR there will be an invitation to “install an integration package”.
Selecting the integration package installs the rpm listed above AND also the “Gnome Shell Integration” extension which then needs to be removed or disabled.