Hmmm...Now the problem is Facebook.

[Inodoro Pereyra]

Another way to check if any of your activated add-ons might be the culprit, is to choose "Help -> Restart with Add-ons Disabled". If this works, try finding the conflicting add-on by disabling each of them individually.

Hope it helps!

IT DID!!!

I disabled the add ons, and everything works! Thanks again everyone for all the help.

Now, how do I disable each add-on individually?

[Krytarik]

Now, how do I disable each add-on individually?

"Tools -> Add-ons", then choose "Disable" at the respective add-ons.

And re-enabling is the same way, just "Enable" then.

[Inodoro Pereyra]

"Tools -> Add-ons", then choose "Disable" at the respective add-ons.

And re-enabling is the same way, just "Enable" then.

Thanks. Will do and report back.

[Inodoro Pereyra]

Ok, since Murphy's Law never fails, having several add-ons, it had to be the one I REALLY didn't want to disable: Ad Block Plus.
The good news is, I disabled it only on Facebook, and everything seems to be working great.

Thanks again everybody, for all the help.

[Krytarik]

Ok, since Murphy's Law never fails, having several add-ons, it had to be the one I REALLY didn't want to disable: Ad Block Plus.

In fact, I'm using Adblock Plus, too; and don't need to disable it on Facebook. I'm subscribed to the EasyList Germany+EasyList ad filter list, as well as to the EasyList Tracking-Filter. To what filter lists are you subscribed?

See here for available filter lists:

http://adblockplus.org/en/subscriptions

EasyList Tracking-Filter URL (surprisingly, not included on their website anymore):

https://easylist-downloads.adblockpl...asyprivacy.txt

[Inodoro Pereyra]

To what filter lists are you subscribed?

Just Easylist in English. It'd always worked perfect;y for me.
Either way, I don't mind having ABP disabled on Facebook. So far, I haven't had any problems with unwanted ads from it. I'm just glad I didn't have to disable it on my other tabs...