I was able to reproduce this issue as well in Firefox Release, Beta as well as our latest Nightly build, however In ESR builds the Flag emojis are not displayed for some reason. I was able to get a regression range for this issue. 11:25.32 INFO: Last good revision: 1e106796d80a09440185e4d5bcdd431e28dea125 11:25.32 INFO: First bad revision: b3b91aca9d8b140a69a8333a9d57f6c90d2ef4a4 11:25.32 INFO: Pushlog: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=1e106796d80a09440185e4d5bcdd431e28dea125&tochange=b3b91aca9d8b140a69a8333a9d57f6c90d2ef4a4 It seems that Bug 1791558 which enabled these fonts is whats causing it.
Bug 1809081 Comment 2 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
I was able to reproduce this issue as well in Firefox Release, Beta as well as our latest Nightly build, however In ESR builds the Flag emojis are not displayed for some reason. I was able to get a regression range for this issue. 11:25.32 INFO: Last good revision: 1e106796d80a09440185e4d5bcdd431e28dea125 11:25.32 INFO: First bad revision: b3b91aca9d8b140a69a8333a9d57f6c90d2ef4a4 11:25.32 INFO: Pushlog: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=1e106796d80a09440185e4d5bcdd431e28dea125&tochange=b3b91aca9d8b140a69a8333a9d57f6c90d2ef4a4 It seems that Bug 1791558 which enabled these fonts is whats causing it. @jfkthame Can you please take a look at this issue ?