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How can I resolve the error code: SSL_ERROR_UNSUPPORTED_VERSION?

  • 5 replies
  • 41 have this problem
  • 29129 views
  • Last reply by philipp

bethel95
bethel95

Starting about a week ago, several sites/pages that I've previously visited successfully will no longer load. Most notably, I can no longer get Amazon's "My Cart" page to load. Instead, I get the following message: 

    Secure Connection Failed

    An error occurred during a connection to smile.amazon.com. Peer using unsupported version of security protocol. Error code: 
    SSL_ERROR_UNSUPPORTED_VERSION

   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.

Well, I'm not likely to get much attention from Amazon, and the smaller sites are as confused about this as I am.

I've already tried the "no proxy" setting in FF (no joy) and renaming cert8.db and deleting cert_override.txt (also no joy).

My next test is to disable all of the extensions that I've installed in the past month (but I have to restart, so this post comes first--I'll report back in a reply).

Starting about a week ago, several sites/pages that I've previously visited successfully will no longer load. Most notably, I can no longer get Amazon's "My Cart" page to load. Instead, I get the following message: Secure Connection Failed An error occurred during a connection to smile.amazon.com. Peer using unsupported version of security protocol. Error code: SSL_ERROR_UNSUPPORTED_VERSION 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. Well, I'm not likely to get much attention from Amazon, and the smaller sites are as confused about this as I am. I've already tried the "no proxy" setting in FF (no joy) and renaming cert8.db and deleting cert_override.txt (also no joy). My next test is to disable all of the extensions that I've installed in the past month (but I have to restart, so this post comes first--I'll report back in a reply).

Chosen solution

hi, please enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for bold preferences starting with security. - right-click and reset those entries to their default values.

Read this answer in context 👍 10

All Replies (5)

bethel95
bethel95 Question owner

Disabling the recent extensions had no effect--the error is still occurring.

I know that Mozilla has been making noises for months about forcing the issue with web sites that use older versions of SSL/TLS, so I'm wondering if that's what's going on. But, if so, why am I not seeing any other complaints about this on this forum (or when googling the error)?

And surely Amazon isn't using an old TLS version on their Cart page??!!

philipp
philipp
  • Moderator

Chosen Solution

hi, please enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for bold preferences starting with security. - right-click and reset those entries to their default values.

bethel95
bethel95 Question owner

I just found this article: https://www.reddit.com/r/firefox/comments/3coba7/firefox_39_completely_breaks_older_sslv3_pages/

However, this doesn't explain why I didn't have this problem until after updating to FF 45 (and maybe not until 45.0.1).

bethel95
bethel95 Question owner

philipp said

hi, please enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for bold preferences starting with security. - right-click and reset those entries to their default values.

That did the trick. I reset the following to their defaults: security.ssl.errorReporting.automatic (from true to false) security.tls.version.min (from 2 to 1)

What puzzles me is that I changed those values well over 2 (3?) years ago--why the problem now?

philipp
philipp
  • Moderator

with your prior configuration you've basically blocked TLS1.0, but that is the only secure protocol that this amazon links is currently providing... maybe you are seeing the issue just now, because their server configuration changed and there were more protocols available before? (i don't think that a recent firefox update would be related to that)