Web browsers have their own system for rendering text and therefore color emoji. Firefox currently uses a version of EmojiOne but is switching to the Twitter emoji set. See https://bugzilla.mozilla.org/1358240
Honestly, the bug report you filed is too broad and in some cases is already duplicated by existing bugs. For reference, you might find this page interesting (it's a large page): https://unicode.org/emoji/charts/full-emoji-list.html Ubuntu 18.04 LTS installs the Google emoji font by default and that page does actually display correctly for me with Firefox. Web pages can specify a particular color emoji font though. Therefore, you will see different emoji sets on different web pages and that's not really a bug. ** No longer affects: ubuntu-meta (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1779569 Title: 🌈 looks odd in thunderbird, chrome/chromium, okish in firefox To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/1779569/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs