1. Download Fantazyn's leethax.xpi patch: https://drive.google.com/open?id=0B0wZdBHtmXCXc2VsSkYyYXQwc1U
2. Open Firefox (if it isn't already running)
3. Drag the leethax.xpi file onto the browser window (or open with firefox)

4a. If it installs, go to 6
4b. If it tells you it can't load it or for some reason it doesn't work go to 5a

5a. Enter into Firefox's address bar: about:config
5b. Promise not to do anything stupid
5c. In the search bar (Under the address bar) type: xpinstall.signatures.required
5d. Change it to False
5e. Restart Firefox
5f. Drag the leethax.xpi file onto the browser window (or open with firefox)

6. Allow the Install
7. Restart Firefox
8. Enjoy

Took me two go's but i got it in the end. Thank you :D.

Thanks a lot. You da' person. 

This is not an offical release, but Phaeton said he checked it and it's safe doesn't have any harmful codes inside, only a few address changed... -> that's why if it say you can update it, don't update because it will make it 'offical' (aka not working) again + has nothing new to offer to MAA.

Also here is some info: If you CAN see the Biohazard symbol but the flight deck isn't working
1) make sure the Flight Deck Automation is checked in Leethax
2) Click on the Simulator tab in the game. (You don't have to do a SIM fight, just change the screen from the flight deck to the SIM and back. That should trigger the flight deck ops.)
 

• 2016.06.28 - Updated Marvel: Avengers Alliance

Now it's all good, you can update it or reinstall the offical.