We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

Search Support

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

This thread was archived. Please ask a new question if you need help.

Getting SSL errors on different webites, using Try again button will open the website

  • 1 reply
  • 1 has this problem
  • 6 views
  • Last reply by cor-el

christy5
christy5
more options

I have been getting different SSL errors when navigating to different websites. Some I have visited before, some new. Here are samples:

Secure Connection Failed

An error occurred during a connection to <website>. Peer could not decode an SSL handshake message.

Error code: SSL_ERROR_DECODE_ERROR_ALERT 

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Learn more…


Secure Connection Failed

An error occurred during a connection to www.<website>.com. Peer reports incompatible or unsupported protocol version.

Error code: SSL_ERROR_PROTOCOL_VERSION_ALERT 

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

This website might not support the TLS 1.2 protocol, which is the minimum version supported by Firefox.

Learn more…


Secure Connection Failed

An error occurred during a connection to <website>. Peer could not decode an SSL handshake message.

Error code: SSL_ERROR_DECODE_ERROR_ALERT 

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Learn more…

I have been getting different SSL errors when navigating to different websites. Some I have visited before, some new. Here are samples: Secure Connection Failed An error occurred during a connection to <website>. Peer could not decode an SSL handshake message. Error code: SSL_ERROR_DECODE_ERROR_ALERT The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem. Learn more… Secure Connection Failed An error occurred during a connection to www.<website>.com. Peer reports incompatible or unsupported protocol version. Error code: SSL_ERROR_PROTOCOL_VERSION_ALERT The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem. This website might not support the TLS 1.2 protocol, which is the minimum version supported by Firefox. Learn more… Secure Connection Failed An error occurred during a connection to <website>. Peer could not decode an SSL handshake message. Error code: SSL_ERROR_DECODE_ERROR_ALERT The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem. Learn more…

All Replies (1)

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

You can check the connection settings.

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

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

See "Firefox connection settings":

Boot the computer in Windows Safe Mode with network support to see if that has effect.