Hello johnaukerman,

Your system details show that you have this extension installed :

F.B Purity - Cleans up Facebook (WX) 26.1.2.0

It's no longer listed on the addons.mozilla.org page .....

Would you please disable it and see if that will make a difference  ?

If the above doesn't turn out to be the problem; maybe you'd like to take a look at this :

https://www.facebook.com/adblockplus/posts/some-of-you-might-have-noticed-that-facebook-looks-broken-it-is-due-to-a-filter-/521450097896415/

If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block (wanted) content (Adblock Plus, NoScript, Disconnect, Ghostery, Privacy Badger, uBlock Origin) always make sure such extensions do not block (wanted) content.

• make sure your extensions and filters are updated to the latest version
• https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems

Firefox shows the shield icon at the left end of the location/address bar in case Content Blocking is blocking content.

• click the shield icon for more detail and possibly disable the protection

You can check the Web Console about what content is blocked

• "3-bar" menu button or Tools -> Web Developer
• https://support.mozilla.org/en-US/kb/tracking-protection
• https://support.mozilla.org/en-US/kb/content-blocking

I tried both of these. Neither one helped.

johnaukerman said

I tried both of these. Neither one helped.

Would you try this please :

You can try these steps in case of issues with web pages : Reload the page : Hold down the Shift key and left-click the Reload button or press 'Ctrl + F5' or press 'Ctrl + Shift + R'

Another thing to try :

Would you try this please :

Clear the Firefox cache :

https://support.mozilla.org/en-US/kb/how-clear-firefox-cache

"Remove the cookies" from websites that cause problems :

https://support.mozilla.org/en-US/kb/delete-cookies-remove-info-websites-stored (scroll down to : "Delete cookies for a single site")

If the above doesn't help, then let's try Firefox in Safe Mode :

If Firefox is not running : Hold down the Shift key when starting Firefox.

If Firefox is running : 3-bar menu => ' ? ' (at the bottom of the dropdown) => 'Restart with Add-ons disabled'. Then OK the restart. A small dialog should appear. Click 'Start in Safe Mode' ( not 'Refresh' !)

See : https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode

Firefox's Safe Mode disables: - extensions (apparantly not relevant in your case) - hardware acceleration of graphics - JavaScript compilers - userChrome.css/userContent.css customization files (usually wouldn't affect performance but could affect layout

Thanks for your help. I tried these steps, but birthdays are still not showing.

johnaukerman said

Thanks for your help. I tried these steps, but birthdays are still not showing.

Bummer  !

Stab in the dark, and this has probably nothing to do with the birthdays not showing up, but could it be that you have inadvertently switched off the Facebook Birthday Notifications  ?

https://bigtechquestion.com/2018/01/25/online/social-media/how-do-i-switch-off-facebook-birthday-notifications/

No point asking you if you have checked 'Birthdays' here :

https://calendar.google.com/calendar/r?tab=wc

As they do show when you use other browsers ......