If anyone from the firefox mobile team is here: please fix the bug where you can't scroll through the tabs when they overflow. Also opening whatsapp links for some reason doesn't open whatsapp but chrome does. This bug and several other nuance things made me go back to chrome mobile which is unfortunate. Especially with the fact that chrome mobile doesn't support plugins.

I am a happy firefox user and the print preview is one of the very few things that made me open chrome backup.