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Problem with SSL certificate zotero.org using Ubuntu 18.04 after upgrade from 16.04

  • 6 replies
  • 1 has this problem
  • 475 views
  • Last reply by jscher2000

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When I try to open zotero.org page I get an error

Your connection is not secure

The owner of www.zotero.org has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this certificate.

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Report errors like this to help Mozilla identify and block malicious sites

www.zotero.org uses an invalid security certificate.

The certificate is only valid for *.api.mandae.com.br.

Error code: SSL_ERROR_BAD_CERT_DOMAIN

I have no clue how to solve it. I already reinstalled SSL certificates and removed certX.db files from profile folder of firefox.

Chosen solution

When routers behave strangely, sometimes it is best to unplug them for 30 seconds and then plug them back in to get a (hopefully) clean start.

Or do you use a VPN?

Read this answer in context 👍 1

All Replies (6)

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Hmm, I don't get that in California.

Does the company Mandaê Servicios de Consultoria em Logística S / A (https://www.mandae.com.br/) have any reason to be involved in your internet connection?

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Nope. I live in France and should not have any connection with this company. I have this same error on two computers with Linux and Windows. Can it be connected with configuration of my network, i.e., router ? This starts to be very mysterious.

Modified by mjjank

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Chosen Solution

When routers behave strangely, sometimes it is best to unplug them for 30 seconds and then plug them back in to get a (hopefully) clean start.

Or do you use a VPN?

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Thanks, rebooting router helped. I'm curious what has caused this problem.

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Possibly your service provider information (e.g., DNS servers) got corrupted in the router, but hopefully not by an attacker.