Nice sunglasses.

You did not say what it is you tried already.

Please explain the problem in detail. What happens? What are the exact error message(s) ?

What are the links you are having problems with? Are the links correct?

Are you trying to enter YouTude using a <dot>com link to the main website, or something else?

There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connection certificates and send their own.

https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can

https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites

https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message

https://support.mozilla.org/en-US/kb/connection-untrusted-error-message

Websites don't load - troubleshoot and fix error messages

http://kb.mozillazine.org/Error_loading_websites

What do the security warning codes mean

https://support.mozilla.org/en-US/kb/troubleshoot-time-errors-secure-websites

http://www.ehow.com/how_11385212_troubleshoot-reset-connection-firefox.html

https://support.mozilla.org/en-US/kb/server-not-found-connection-problem

https://www.bing.com/search?q=web+site+access+denied

FredMcD said

Nice sunglasses. You did not say what it is you tried already. Please explain the problem in detail. What happens? What are the exact error message(s) ? What are the links you are having problems with? Are the links correct? Are you trying to enter YouTude using a <dot>com link to the main website, or something else?

Hi. Pardon my late reply.

The error is: We can’t connect to the server at youtu.be. With steps to check internet connection and firewall, but my connection is okay and Firefox has long been allowed through my firewall since forever.

I went to this Firefox Support page: "Server Not Found"

I first read the Try Another Browser section. Neither Edge or Internet Explorer 11 were able to open these links. I'm running Firefox 70.0.1 and Windows 10 1903 on a personal desktop, no VPN, proxy or domain enabled.

Then moved on to No browsers can load websites. I followed the steps to remove and re-add Firefox.exe to the Windows Firewall. It still couldn't load a youtu.be link.

It happens with any shortened Youtube link (https://youtu.be) generated through the "Share" button under a Youtube video. I always access Youtube through youtube.com with no problems, but I've encountered this problem before with youtu.be links and disregarded it every time. So, this time I'm reporting it just to see if other people have this issue as well.

For example, Diablo 4 - Official Announcement Cinematic Trailer | Blizzcon 2019

• This shortened link won't load (link is copied directly from the Share button):
  • https://youtu.be/0SSYzl9fXOQ
• But the same video will load successfully if typed as standard
  • https://www.youtube.com/watch?v=0SSYzl9fXOQ

Thank you

FredMcD said

There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connection certificates and send their own. https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message https://support.mozilla.org/en-US/kb/connection-untrusted-error-message Websites don't load - troubleshoot and fix error messages http://kb.mozillazine.org/Error_loading_websites What do the security warning codes mean https://support.mozilla.org/en-US/kb/troubleshoot-time-errors-secure-websites http://www.ehow.com/how_11385212_troubleshoot-reset-connection-firefox.html https://support.mozilla.org/en-US/kb/server-not-found-connection-problem https://www.bing.com/search?q=web+site+access+denied

That is correct, but I don't have any of the listed software. Just Windows Defender for firewall and real-time security duty. And self-precaution lol.

I tried youtu.be from America, and was sent to https://www.youtube.com/?feature=youtu.be

What is your location?

FredMcD said

I tried youtu.be from America, and was sent to https://www.youtube.com/?feature=youtu.be What is your location?

My location is Puerto Rico (America).

I called for more help.

McCoy said

I found this article :
https://techwelkin.com/difference-youtube-youtu-be
Especially the comment under the article makes sense !

And I found this :
http://www.differencebetween.net/technology/web-applications/difference-between-youtube-com-and-youtu-be/