Waardering 5 van 5 sterren
I used this guys how to guide. https://champtown.wordpress.com/2013/01/24/using-silent-block-on-android/
Make sure you go into your permissions for Fire Fox and enable the storage permission. This was the one trick I found in someone else's comments here. At first it didn't work. Once I gave fire fox permission to access storage it worked.
You can also do this on a mac, I did. Use Android File Transfer to plug your phone in and add files. Just look up how to make a .txt file using text editor.