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My Firefox keeps crashing with a message "This Connection is Untrusted" even though I have reinstalled the product.

Posted

I am not entirely sure why this has been happening but I have tried to solve this issue for a while now. I am unable to log in into my email because the message "The Connection is Untrusted" does not allow me to add an exception. This has been happening to a variety of Websites, however, for some of them I was able to add an exception. More importantly (i wish i was able to include screenshots), the view of for instance this window or Facebook is altered and showed without images but only with blue-regular words. This happens repeatedly.

Re-installation of this program as well reset throughout Troubleshooting seems not to work nor does the update of the Adobe Flash Player. I have never had any problems with a great product such as Firefox but all of the sudden I am lost. I would appreciate any help from you guys because I would like to keep using this product.

Thank You,

Dave

Additional System Details

Application

  • User Agent:

More Information

Application Basics
Name
Firefox
Version
18.0.2
User Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:18.0) Gecko/20100101 Firefox/18.0
Build Configuration
about:buildconfig
Extensions
Name
Version
Enabled
ID
Important Modified Preferences
Name
Value
browser.cache.disk.capacity
358400
browser.cache.disk.smart_size_cached_value
358400
browser.cache.disk.smart_size.first_run
false
browser.cache.disk.smart_size.use_old_max
false
browser.places.smartBookmarksVersion
4
browser.startup.homepage_override.buildID
20130201065344
browser.startup.homepage_override.mstone
18.0.2
extensions.lastAppVersion
18.0.2
gfx.blacklist.webgl.msaa
4
network.cookie.prefsMigrated
true
places.history.expiration.transient_current_max_pages
100664
privacy.sanitize.migrateFx3Prefs
true
privacy.sanitize.timeSpan
0
Graphics
Device ID
0x 8a0
GPU Accelerated Windows
1/1 OpenGL
Vendor ID
0x10de
WebGL Renderer
NVIDIA Corporation -- NVIDIA GeForce 320M OpenGL Engine
AzureCanvasBackend
quartz
AzureContentBackend
none
AzureFallbackCanvasBackend
none
JavaScript
Incremental GC
true
Accessibility
Activated
false
Prevent Accessibility
0
Library Versions
Expected minimum version
Version in use
NSPR
4.9.4
4.9.4
NSS
3.14.1.0 Basic ECC
3.14.1.0 Basic ECC
NSSSMIME
3.14.1.0 Basic ECC
3.14.1.0 Basic ECC
NSSSSL
3.14.1.0 Basic ECC
3.14.1.0 Basic ECC
NSSUTIL
3.14.1.0
3.14.1.0

philipp
  • Top 10 Contributor
  • Moderator
2042 solutions 8887 answers

hello dave, when you get a "this connection is untrusted" page which kind of error code is shown under technical details? please also make sure that the date & time on your system is set correctly...

cor-el
  • Top 10 Contributor
  • Moderator
10742 solutions 96657 answers

It shouldn't be necessary to add an exception. Make sure that the date and time are correct on your computer.

If a web page is opened in a (i)frame then you can't set an exception.
You can try to open page in the frame in a new tab via the right-click context menu.

Check out why the site is untrusted (see the Technical details) and if this is caused by a missing intermediate certificate then see if you can install this intermediate certificate from another source.

You can retrieve the certificate and check details like who issued certificates and expiration dates of certificates.

  • Click the link at the bottom of the error page: "I Understand the Risks"

Let Firefox retrieve the certificate: "Add Exception" -> "Get Certificate".

  • Click the "View..." button and inspect the certificate and check who is the issuer.

You can see more Details like intermediate certificates that are used in the Details pane.


Try to rename the cert8.db file in the Firefox profile folder to cert8.db.old or delete the cert8.db file to remove intermediate certificates that Firefox has stored.

If that helped to solve the problem then you can remove the renamed cert8.db.old file.
Otherwise you can rename (or copy) the cert8.db.old file to cert8.db to restore the previous intermediate certificates.
Firefox will automatically store intermediate certificates when you visit websites that send such a certificate.

If that didn't help then remove or rename secmod.db (secmod.db.old) as well.

You can use this button to go to the Firefox profile folder:

Question owner

It was showing an 'Error code: sec_error_expired_issuer_certificate.' However, indeed both of you were right!! It was the date (year) that seemed to be the problem! For some weird reason, it was set to a year 2035 - definitely not altered by myself though so I am not sure how that even happened.

Anyways, thank you so much guys!!

Cheers,

Dave