I finally saw me nudged to install another add-on in Firefox to “fix” the #referrer header. Bad enough that #YouTube requires a referrer header to allow #embed|s. Now I also fell over OSM requiring one (this one I can get). But I don’t want to globally enable cross-origin referrer headers. Hence “Toggle Referrer.” It disables refererrs by default, and has a small spoofing list for annoying web resources that really want to have a referrer. YouTube gets a Google.com referrer. Take that, big tech!

