Okay, okay, you have many posts now. You can use your profile to access your questions: https://support.mozilla.org/user/1033838

When you filter out information that sites use for their normal functioning, they may not function correctly. You may want to study up a little bit on these extensions and try learning one at a time instead of installing all four at once.

To see whether the extensions are the root of your troubles, try visiting Facebook 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 (Plugins like Flash will still work)

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

Any difference?

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