For the Facebook layout issue:

• Could you try with the default zoom level? You can reset zoom by holding down the Ctrl key and tapping 0 (zero). If that lines up but becomes misaligned as you zoom, it could be the "Zoom Text Only" setting.

View menu (Alt+v) > Zoom > Zoom Text Only

For Facebook buttons not appearing on other sites:

• Do you see any new/different notification icons on the left end of the address bar? These can indicate problems with mixed content or missing/inactive plugins.

• In case one of your extensions is involved, could you try some of those sites in Firefox's Safe Mode? That's a standard diagnostic tool to bypass interference by extensions (and some custom settings). More info: Diagnose Firefox issues using Troubleshoot Mode.

You can restart Firefox in Safe Mode using

Help > Restart with Add-ons Disabled (Flash and other plugins still run)

In the dialog, click "Start in Safe Mode" (not Reset)

Any difference?

Thank you - one problem solved! (Layout issue, stupid me, I didn't even think to try that!) But now I have to sit closer to read it. HAHA!

Now, I tried one link, and it did link up with Firefox in Safe Mode. What is "broken" and how can I fix it? I am assuming it is one of the extensions, but how do I know which one? I really appreciate your response and help!

Nancy

Regarding an extension that might block the Facebook Like/share buttons on other sites, my guess would be something privacy related. Could it be avast! Online Security?

Actually, I upgraded to v28, and now it works! LOL! Thanks so much for your help!