So i have not been able to play becouse of this!
Warning: Possible security risk in the future
Firefox detected a problem and did not proceed to upgrade wow-europe com. The site is either incorrectly configured or your clock is set at the wrong time.
It is likely that the site’s certificates have expired, preventing Firefox from connecting securely. If you visit this site, attackers may try to steal information such as password, email or credit card details.
What can you do about it?
The computer clock is set for 2019-11-28. Make sure your computer is set to the correct date, time, and time zone in your system settings, and then update upgrade wow-europe com.
If the clock is already set at the right time, the site is likely to be misconfigured, and there is nothing you can do to resolve the problem. You can notify the site administrator about the problem.
“My computer have right date & time and been so Always,This is a Blizzard problem and nothing i can do aboute it” Can i play again ever or i have to quit?
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The site certificate is a valid SSL certificate, issued to Blizzard Inc by Digicert. All specified cyphers are valid (they aren’t using any deprecated cypher systems), and expiry dates are valid.
I have checked the certificate in all three main browsers.
- Internet Exploder.
- Mozilla Firefox.
- Google Chrome.
In conclusion, it seems the problem lies with your browser configuration, not with the site certificates.
Then its nothing i can do aboute it date & Clock is like it shall be here,maybe its a sign to check out from Wow after 15 years play…i need help whit this im not a IT expert or 2nd alternativ just quit the game…
I checked the URL listed in Chrome. It for a brief second shows an error before redirecting.
Checking the domain in question via a SSL cert checker it says expiration of the cert was Jun 27 2016:
It’s easy as hell, wow-europe.com is no longer official page for blizzard so there was no need for certificate
https://imgur.com/a/f9aGIhz
Official page is https://worldofwarcraft.com/en-us/ and this one have fully authorised certificates.
https://imgur.com/a/iERDBt0
end of story.
Decayin shoots and scores here. 
We’ve reorganized our pages quite some time ago already, so some of ye olden domains now redirect to newer services.
This problem came right in my face 1 week ago now,i removed Warcraft to reinstall it and now when i shall continue download from Battle-net my Antivirus program if i shall accept this,i check the details and certificate is 2018 until 2021 so it “Should” work but after i clicked “Yes” and the download starts it quit after 3 sec and information comes up “World of warcraft installation” “We could not verify a digital signature.Follow the steps in this article to fix the issue” so back to Square 1…I Think i give up! Thank you for the 15 years!
That seems to be a rather different issue, namely that the database definitions of the anti-virus program may be faulty or outdated.
You will want to check if there are updates available for the program, or use a different one - you may rest assured that downloads from our website/application are very much harmless*. 
*Take all things in moderation, even WoW!
Its auto update every time im online my anti-virus ,i tryed Everything now get around this and nothing works…
Strange thing is last time i had same issue it solved itself whitout i did anything?It took 1-2 weeks so i dont think problem is here and its Always after a game update the problems come if there is a problem.
Can’t you add WoW to trusted programs and forget about the issue?
What Antivirus program do you use?
Tried disabling it for testing purposes?
F-Secure i just tryed whit disabling it but same result “User account Control” “Do you allow following program (Warcraft) can be used to change on this computer?” i push YES button ofcourse the download begin for 1 secound and it stops. Message comes up “World of warcraft installation” “We could not verify a digital signature.Follow the steps in this article to fix the issue”
Are you trying installing the game using the up-to-date Battlenet desktop application?
You can download the latest installers from https://www.blizzard.com/en-us/download/ and I would suggest downloading the Desktop App one as it can install all the games as needed (though I guess WoW setup will also install it anyways).
The problem seems unrelated to topic of this thread so you might want to make new thread if the installation problems continue.
Yes i tryed Everything even to reinstall whit all Dvd i still have but the problem stay,i have give up this more or less it seem to be over play wow =(