Yes, you could wait until whoevers Extension you are using is updated OR you can use this handy little trick:

• Open a new Tab
• Enter about:config in the addressbar
• Void the warranty! (You’ll see what i mean)
• Look for extensions.checkCompatibility
• Set the value to false
• You may or may not have to restart Firefox

And that’s it! Keep in mind not to blame Firefox for incompatible Extensions that do not work now ;) To reverse those Settings you can always do the same steps and just set the value back to true.

here’s a mirror for those that try to get Firefox during this 24 hour crazyness.