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Error messages appearing only after recent update

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After recent update (to version 53.0.3 32 bit) I am receiving an error message on many https sites I was accessing on the previous day. I have no problems accessing these sites on other browsers like IE. The error message tends to be "Secure Connection Failed

An error occurred during a connection to hdontap.com. Peer’s certificate has an invalid signature. Error code: SEC_ERROR_BAD_SIGNATURE." The discussion on the help page does not seem to apply. I tried using the green button below to "Automatically add" troubleshooting information but that fails.

After recent update (to version 53.0.3 32 bit) I am receiving an error message on many https sites I was accessing on the previous day. I have no problems accessing these sites on other browsers like IE. The error message tends to be "Secure Connection Failed An error occurred during a connection to hdontap.com. Peer’s certificate has an invalid signature. Error code: SEC_ERROR_BAD_SIGNATURE." The discussion on the help page does not seem to apply. I tried using the green button below to "Automatically add" troubleshooting information but that fails.

All Replies (5)

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I accessed the site with no problem.

Many site issues can be caused by corrupt cookies or cache.

  • Clear the Cache and
  • Remove Cookies

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

Type about:preferences<enter> in the address bar.

  • Cookies; Select Privacy. Under History, select

Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.

  • Cache; Select Advanced > Network. Across from

Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} A small dialog should appear. Click Start In Safe Mode (not Refresh). While you are in safe mode;

Type about:preferences#advanced<enter> in the address bar.

Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

Then restart. Poke around safe websites. Are there any problems?

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You can click the "Advanced" button to expand this section to see extra details. If the certificate is not trusted because no issuer chain was provided (SEC_ERROR_UNKNOWN_ISSUER) then click the blue error message to expand this section and to show the certificate chain. You can paste the full base64 encoded certificate chain in a reply. Then we can check the issuer.

In case your security software is involved, see also:

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Do not see the "Advanced" button

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Can you attach a screenshot to show this error?

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Adding a screenshot to show this error