firefox containers and proxy error

i am trying to set up firefox containers to run proxies in them

i am getting this error:

The connection was interrupted

An error occurred during a connection to google.com. PR_END_OF_FILE_ERROR

Error code: PR_END_OF_FILE_ERROR

The site could be temporarily unavailable or too busy. Try again in a few moments.
If you are unable to load any pages, check your computer’s network connection.
If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the web.

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which addon are you using for proxy?

It looks like an authentication error. Make sure that you are providing the correct information for the authorization of the proxies and use extensions that require authorization for the configuration of the proxy. You will be goo to go.

That PR_END_OF_FILE_ERROR error looks like it may be related to https/ssl certificates. For the proxies you're using, do they have any setup steps that were missed to use them?

Check Your Proxy Settings: Verify if your proxy settings are correct. If there are any errors in the proxy configuration, it might cause the connection issue.

Firewall and Antivirus: Sometimes, antivirus software or a firewall might be blocking the connection. Check to see if they are causing an issue. Try disabling them temporarily to see if the problem persists. If the problem is resolved, you'll need to adjust the settings on your firewall or antivirus software to allow Firefox to make connections.

SSL/TLS Settings: You may need to adjust your SSL/TLS settings in Firefox. Type "about:config" into the address bar, and proceed with caution. Find the "security.tls.version.min" and "security.tls.version.max" settings. For most users, the "min" should be set to 1, and the "max" should be set to 4. If you're not sure, you may want to reset these settings to their default values.

Update Firefox: Ensure you're using the latest version of Firefox. If you're not, update to the latest version and see if the issue is resolved.

Restart Your Computer: In some cases, this error might occur due to a temporary issue with your computer's network. Restarting your computer can often resolve such temporary issues.