[mlok]

Still not working.

[yoble]

Thank you for the reports, @thread.

Firefox was escaping the downloaded data (loaded in a href attribute) differently than chrome, that problem should be solved now. Do let me know if you still experience issues.

[chicob]

This is what I get: https://postimg.org/image/lhy1cdkad/

[chicob]

I just updated Firefox to 54.0. It seems to work now!