Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

Mozilla サポートの検索

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

このスレッドはアーカイブに保管されました。 必要であれば新たに質問してください。

Getting error message when trying to open some web sites.

  • 1 件の返信
  • 0 人がこの問題に困っています
  • 1 回表示
  • 最後の返信者: cor-el

Kenneth Huhn
Kenneth Huhn
more options

When I try to open Facebook, NJ.Com and Shopmyexchange.com I get the error message "Secure Connection Failed An error occurred during a connection to www.facebook.com. PR_END_OF_FILE_ERROR Error code: PR_END_OF_FILE_ERROR". I have tried the instructions on your support page but that didn't help. I can get into other web pages with no problem and can get into the 3 web sites using another browser.

When I try to open Facebook, NJ.Com and Shopmyexchange.com I get the error message "Secure Connection Failed An error occurred during a connection to www.facebook.com. PR_END_OF_FILE_ERROR Error code: PR_END_OF_FILE_ERROR". I have tried the instructions on your support page but that didn't help. I can get into other web pages with no problem and can get into the 3 web sites using another browser.
添付されたスクリーンショット

すべての返信 (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can try to disable DNS over HTTPS.

Do you use a Proxy or VPN?

You can check the connection settings.

  • Settings -> General -> Network: Connection -> Settings

If you do not need to use a proxy to connect to internet, select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See "Firefox connection settings":

See also: