Hi Rebecca

I would like to look into this further for you. Which site and document are you trying to download?

What add-ons do you have installed in Firefox for Android? What level of enhanced tracking protection do you have set?

Hello, When I try to download any document on Firefox it just down loads blank documents. From any site and all documents. For example from Royal Mail, when I create shipping labels it just downloads blank ones, from chrome it’s fine. All zero KB