It is possible to save the page as a pdf and use another app to connect to the printer if its supported. There is not a built in default function to print from Firefox for Android.

Hi forourke

Firefox for Android 44 currently scheduled to be released on January 26, 2016 will have printing support for Android 4.4 and above [1] for Google Cloud Printing [2] (Firefox Menu -> Page -> Print).

You can try Firefox for Android 44 (it's in beta now and can be downloaded from the App Store at: https://play.google.com/store/apps/details?id=org.mozilla.firefox_beta )

or you can wait until January 26

or you save as PDF as per guigs suggestion.

Cheers!

...Roland

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=1078432 [2] https://www.google.com/cloudprint/