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This Connection is Untrusted: accounts.google.com - can't add exception


I'm trying to use a ssl proxy with accounts.google.com.

Usually, firefox warns me about invalid certs, however it let me add an exception if I wanted to connect to it anyway.

But, if i want to connect to accounts.google.com, it blocks me, and it doesn't let me add that exception.

Why it happens only with this subdomain?

Chosen solution

You may also have to Import the root certificate of the proxy via Tools (Alt + T) > Options > Advanced > Encryption > View Certificates > Authorities. Options > Advanced


Read this answer in context 4

Additional System Details

This happened

Every time Firefox opened

Installed Plug-ins

  • Shockwave Flash 11.1 r102


  • User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2 Iceweasel/10.0.2

More Information

This Connection is Untrusted
You have asked Iceweasel to connect
securely to accounts.google.com, but we can't confirm that your connection is secure.
Normally, when you try to connect securely,
sites will present trusted identification to prove that you are
going to the right place. However, this site's identity can't be verified.
What Should I Do?
If you usually connect to
this site without problems, this error could mean that someone is
trying to impersonate the site, and you shouldn't continue.
Technical Details
accounts.google.com uses an invalid security certificate.
The certificate is not trusted because the issuer certificate is not trusted.
(Error code: sec_error_untrusted_issuer)

Vivek 310 solutions 2084 answers


Please also try after deleting the cert8.db and cert_override.txt files in the Firefox Profile Folder. Firefox will regenerate the cert8.db file at the next startup while the second file will be generated when an exception is added.

Firefox Profile Folder & Files

Modified by Vivek

Question owner

I tried that, same results.


Helpful Reply

Here is the warning, the "I Understand the Risks" section and the "Add Exception ..." button are missing.

Modified by Midix666

Vivek 310 solutions 2084 answers

Chosen Solution

You may also have to Import the root certificate of the proxy via Tools (Alt + T) > Options > Advanced > Encryption > View Certificates > Authorities. Options > Advanced


  • Top 10 Contributor
  • Moderator
10749 solutions 96724 answers

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).

Make sure that you do not run Firefox in permanent Private Browsing mode.

andrewk89 0 solutions 1 answers

Helpful Reply

How do you get the root certificate of the proxy that you will need to import?

DenverDave 0 solutions 8 answers

Same problem just started happening on my windows 7 laptop today with firefox 9.0.1 - I'm applying the update now .... can't seem to force an update just says I'm on the release update channel - I'll leave the laptop on for a while. OK - updated to firefox 13.0.1 - still have same issue.

Internet explorer displays google.com just fine, seems to be an issue with firefox.

I renamed cert8.db and I don't see a cert_override.txt - no effect - google.com still is not trusted.

DenverDave 0 solutions 8 answers

Scanned for viruses with za, didn't find any

DenverDave 0 solutions 8 answers

I'm not sure why, but date and time were off by a couple of years. Fixed the date and time and the issue of google.com not being trusted with ff went away. ,