But emoji like 😂 (tears of joy) show up as their black and white counterparts rather than their EmojiOne counterparts in Firefox. On Chrome, all emoji show up as black and white icons.
Chrome (demo page):
Why is it that Firefox will display some emojis in colour, but other emojis in black and white? In Unity Tweak Tool, my default font is set to Bitstream Vera Sans Roman (I have no other types of Bitstream Vera fonts), which is said to display EmojiOne. My document and window font is set to the same one. Only my monospace font is different (Courier). In Firefox's about:config, I have "gfx.font_rendering.fontconfig.fontlist.enabled" set to "false". Also, my Serif and Sans-serif fonts are both set to Bitstream Vera in Firefox.
I've also noticed that sometimes my fonts will switch to DejaVu Sans. Why? Why can't I set my fonts to a Bitstream font permanently?