This just started yesterday and it seems users of Mozilla Firefox have experienced this previously. It was finally marked resolved here about 5 months ago:
https://bugzilla.mozilla.org/show_bug.cgi?id=1834194
It works just as described at the link. The time and date stamps are missing but appear if you hover over them.
Like other users at the link, I use Social Fixer but tried disabling it to see if that helped. No effect. Apparently this only effects some users of Firefox and now me. I tried searching for other mentions of it here but the search term "Facebook" didn't get any hits, so I assume this is a new issue.
This just started yesterday and it seems users of Mozilla Firefox have experienced this previously. It was finally marked resolved here about 5 months ago: https://bugzilla.mozilla.org/show_bug.cgi?id=1834194
It works just as described at the link. The time and date stamps are missing but appear if you hover over them.
Like other users at the link, I use Social Fixer but tried disabling it to see if that helped. No effect. Apparently this only effects some users of Firefox and now me. I tried searching for other mentions of it here but the search term "Facebook" didn't get any hits, so I assume this is a new issue.