Only got it today after that small patch was downloaded on two different pcs. One of them doesn't even have any addons installed.
edit (got it again):
WowBrowserProxy.exe - System error
The program could not be started since libcef.dll is missing on your computer. You might be able to solve this issue by reinstalling the program.
This file is related to the Chromium browser we're using for the in-game knowledge database.
If this file is missing, try running the Repair found on the Launcher under the Help menu.
If that doesn't help, try removing the Utils folder found in your World of Warcraft directory, as that's where this should be. Running the Launcher again (and maybe using the Repair Tool) should force this to be completely redownloaded, which should fix the issue.
I award you 10/10 for service my good man, I deleted the Utils folder as mentioned and it worked first time.
I used the Repair Tool first, which didn't help.
Then I removed the Utils folder and started the Launcher and used the Repair Tool again and then an error occurred while it was repairing.
I had to restart the Launcher and it took a while until I could click Play.
When I logged on my character, I didn't get any error messages, even though the Utils folder is missing :S
Have tried use repair tool, then removed Utils and then repaired again.
It removed my error messages but wow closes after a few seconds now.
Great name, btw - love it!
Inoltre ho fatto quanto riportato in discussione ma mi da un errore critico e mi fa uscire dal gioco.
Edit: It doesnt crash unless i for example change settings or go in combat, but if i do (and i need to, cant change settings since they reset as wow crashes) im sure to freeze within a few seconds.