"This Connection is Untrusted" - My PC clock is correct, but...

Earlier today, my PC clock set itself to tomorrow's date. I fixed it, didn't think anything of it. It is currently correct.
Now, I'm getting the "This Connection is Untrusted" on every site. If I change the PC clock to the INCORRECT date of tomorrow, it will start working again. My BIOS clock is correct.
The only thing I can think of that I've done between when Firefox was last working and now install Origin. I don't recall if it stopped working immediately after I set the clock to the correct date (I usually work in another browser save for a few sites -Opera, by the way, has no problems).
I'm stumped. Also, if it's relevant, I literally built this PC yesterday, clean installs of everything.

Hi Awkward, if the problem mainly affects sites you've visited before, could you try renaming Firefox's certificate store file, cert8.db, so Firefox starts a new one? Here's how:
Open your current Firefox settings (AKA Firefox profile) folder using either
* "3-bar" menu button > "?" button > Troubleshooting Information
* (menu bar) Help > Troubleshooting Information
* type or paste about:support in the address bar and press Enter
In the first table on the page, click the "Show Folder" button. This should launch a new window listing various settings files.
Leaving that window open, switch back to Firefox and Exit, either:
* "3-bar" menu button > "power" button
* (menu bar) File > Exit
Pause while Firefox finishes its cleanup, then rename '''cert8.db''' to something like cert8.old (note: if your Windows does not show the .db extension, you can turn on display of file extensions following the steps in this article: [http://windows.microsoft.com/en-us/windows/show-hide-file-name-extensions])
Start Firefox back up again. Can you visit secure sites more normally?
I'm not familiar with Origin. Does it affect how you connect to the internet, in particular, does it proxy your connection or include anything like a private VPN? You can review and experiment with your Firefox connection settings here:
"3-bar" menu button (or Tools menu) > Options > Advanced > Network mini-tab > "Settings" button
The default setting of "Use system proxy settings" should piggyback on the Windows/IE LAN settings. You could try "No proxy" and see whether that makes any difference.

Similar Messages

Cannot access any https sites, clock is OK, get This Connection is Untrusted error message.

All works OK on Chrome and IE, but Firefox just suddenly stopped access to https sites yesterday, e.g. Google, Facebook and Linkedin. Non secure http sites are OK though. "This Connection is Untrusted" is the error message and technical details are www.google.com.tw uses an invalid security certificate. The certificate is not trusted because no issuer chain was provided. (Error code: sec_error_unknown_issuer). I've tried all the Mozilla support suggestions, clock (which was always correct), reset Firefox, etc. No change so far, I hope you can help fix this issue.

Check the date and time and time zone in the clock on your computer: (double) click the clock icon on the Windows Taskbar.
Check out why the site is untrusted and click "Technical Details to expand this section. If the certificate is not trusted because no issuer chain was provided (sec_error_unknown_issuer) 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 of the certificate.
You can see more Details like intermediate certificates that are used in the Details pane.
If "I Understand the Risks" is missing then this page may be opened in an (i)frame and in that case try the right-click context menu and use "This Frame: Open Frame in New Tab".
*Note that some firewalls monitor (secure) connections and that programs like Sendori or FiddlerRoot can intercept connections and send their own certificate instead of the website's certificate.
*Note that it is not recommended to add a permanent exception in cases like this, so only use it to inspect the certificate.

Every time I try to log into ANY website that is secured, I get an error message "This connection is untrusted."

The error message is:
This Connection is Untrusted
You have asked Firefox to connect securely to www.facebook.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.
www.facebook.com uses an invalid security certificate. The certificate is not trusted because no issuer chain was provided. (Error code: sec_error_unknown_issuer)
If you understand what's going on, you can tell Firefox to start trusting this site's identification. Even if you trust the site, this error could mean that someone is tampering with your connection.
Don't add an exception unless you know there's a good reason why this site doesn't use trusted identification.
Steps I have take so far:
Verified that system clock is correct
Cleared all cache, history, cookies, etc.; didn't help
Started Firefox in Safe Mode; didn't help
Disabled all Firefox extensions; didn't help
uninstalled and reinstalled Firefox using Control Panel; didn't help
Ran Microsoft Safety Scan for malware; nothing was found
Other information:
This problem exists ONLY in my user profile and ONLY in Firefox. All 5 other users can run Firefox with no problem. I can run IE and Chrome with no problem.
Problem exists in ALL secured (https) sites.
I use Avast and Windows Firewall. Had never heard of ESET or BitDefender before searching these forums.
A lot of the sites don't give me the option to Make an Exception. The two that I tried to make exceptions for, still wouldn't open.
Run Windows 7 64-bit

unfortunately the fiddler2 issuer in certificates might be a sign of unwanted software present on your pc that is intercepting secure network traffic. please go into the system control panel and uninstall programs like BrowserSafeguard, BrowserSafe, SafeGuard or other software that sounds suspicious and didn't get installed by you intentionally.
 reference: https://support.mozilla.org/en-US/questions/982532#answer-520145
afterwards, run a full scan of your system with different security tools like the [http://www.malwarebytes.org/products/malwarebytes_free free version of malwarebytes] & [http://www.bleepingcomputer.com/download/adwcleaner/ adwcleaner].
[[Troubleshoot Firefox issues caused by malware]]

This Connection is Untrusted keeps coming up. It won't accept any certificates.

Whenever I try to go to any page that requires a log in I keep getting this message page "This Connection is Untrusted". On some pages it won't give me the option to accept and go on ( example: when I try to log in to YouTube). It seems that Firefox does this when I unplug my computer for a couple of days. I've tried to go into settings and change the certificates part but I can't get anything to work.

Check the calendar/clock on your computer, to be sure that the date/time are correct. If your computer will not hold/keep the correct information, you may need to replace the "coin" battery on your motherboard (see your manufacturer or your computer manual for instructions and to determine whether you have a replaceable battery or if it is soldered to the motherboard).
*http://kb.mozillazine.org/SSL_Security_Error
*Set date time Windows XP: http://www.techyv.com/questions/date-and-time-setting-windows-xp
You can view the certificate information by clicking the Site Identity Button (icon at the left end of the Location/URL bar; see below) when on the page, then click More Information, on the Page Info "Security" tab, click "View Certificate", then on the "General" tab, look at dates under "Validity".
*https://www.mozilla.com/en-US/firefox/security/identity/
*https://support.mozilla.com/en-US/kb/Site+Identity+Button
*http://www.dria.org/wordpress/archives/2008/05/06/635/
'''If this reply solves your problem, please click "Solved It" next to this reply when signed-in to the forum.'''
Not related to your question, but...
You may need to update some plug-ins. Check your plug-ins and update as necessary:
*Plug-in check --> http://www.mozilla.org/en-US/plugincheck/
*Adobe Shockwave for Director Netscape plug-in: [https://support.mozilla.com/en-US/kb/Using%20the%20Shockwave%20plugin%20with%20Firefox#w_installing-shockwave Installing ('''''or Updating''''') the Shockwave plugin with Firefox]
*'''''Adobe PDF Plug-In For Firefox and Netscape''''': [https://support.mozilla.com/en-US/kb/Using%20the%20Adobe%20Reader%20plugin%20with%20Firefox#w_installing-and-updating-adobe-reader Installing/Updating Adobe Reader in Firefox]
*Shockwave Flash (Adobe Flash or Flash): [https://support.mozilla.com/en-US/kb/Managing%20the%20Flash%20plugin#w_updating-flash Updating Flash in Firefox]
*'''''Next Generation Java Plug-in for Mozilla browsers''''': [https://support.mozilla.com/en-US/kb/Using%20the%20Java%20plugin%20with%20Firefox#w_installing-or-updating-java Installing or Updating Java in Firefox]

Website box says, ' this connection is untrusted, can't confirm it's secure'.

I'm trying to open a secure website. a box comes up, it reads:
'this connection is untrusted... can't confirm connection is secure... this sites identity can't be verified... this error could mean someone is trying to impersonate the site.' I called the company and they said it is my browser. I don't know what to do?

Check the date and time and time zone in the clock on your computer: (double) click the clock icon on the Windows Taskbar.
Check out why the site is untrusted and click "Technical Details" to expand this section.
If the certificate is not trusted because no issuer chain was provided (sec_error_unknown_issuer) 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 of the certificate.
You can see more Details like intermediate certificates that are used in the Details pane.
If "I Understand the Risks" is missing then this page may be opened in an (i)frame and in that case try the right-click context menu and use "This Frame: Open Frame in New Tab".
*Note that some firewalls monitor (secure) connections and that programs like Sendori or FiddlerRoot can intercept connections and send their own certificate instead of the website's certificate.
*Note that it is not recommended to add a permanent exception in cases like this, so only use it to inspect the certificate.

Ugent help - Every time i go to a secure website firefox latest version says This Connection is Untrusted. This was never there before and now its appearing

Every time i go to a secure website using firefox latest version i get an error saying "This Connection is Untrusted" This was never there before and now its appearing. My computer clock and date is correct and i have tested out all plugins that they are updated. Also did a scan on all viruses and spyware nothing there any help please.

Sorry, I didn't look at all the images.
You can see that the certificate is issued by your security software (Firewall): ESET SSL Filter CA 
So you will have to disable that filter or install the ESET root certificate that chains to that certificate.

'This Connection Is Untrusted' Won't Go Away

I have been using Firefox for a while, but then suddenly some websites came up with 'This Connection is Untrusted'. Whenever I got this, I added an exception and everything was fine. All of a sudden, when I tried accessing a page on Facebook, the message came up again, without the option to add an exception. I've been searching through google for an answer, but haven't found anything that worked. It's really annoying.
Here's the full message I get:
This Connection is Untrusted
You have asked Firefox to connect securely to www.facebook.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 veri
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
www.facebook.com uses an invalid security certificate. The certificate is not trusted because no issuer chain was provided. (Error code: sec_error_unknown_issuer)

Check the date and time and time zone in the clock on your computer: (double) click the clock icon on the Windows Taskbar.
Check out why the site is untrusted and click "Technical Details" to expand this section.
If the certificate is not trusted because no issuer chain was provided (sec_error_unknown_issuer) 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 of the certificate.
You can see more Details like intermediate certificates that are used in the Details pane.
If "I Understand the Risks" is missing then this page may be opened in an (i)frame and in that case try the right-click context menu and use "This Frame: Open Frame in New Tab".
*Note that some firewalls monitor (secure) connections and that programs like Sendori or FiddlerRoot can intercept connections and send their own certificate instead of the website's certificate.
*Note that it is not recommended to add a permanent exception in cases like this, so only use it to inspect the certificate.

Getting "This Connection Is Untrusted" on most sites

All of a sudden, I am getting a "This Connection Is Untrusted" box that prevents me from accessing my ususal websites.
Please advice

Check the date and time in the clock on your computer: (double) click the clock icon on the Windows Taskbar.
Check out why the site is untrusted and click "Technical Details to expand this section. If the certificate is not trusted because no issuer chain was provided (sec_error_unknown_issuer) 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 of the certificate.
You can see more Details like intermediate certificates that are used in the Details pane.
If "I Understand the Risks" is missing then this page may be opened in an (i)frame and in that case try the right-click context menu and use "This Frame: Open Frame in New Tab".
*Note that some firewalls monitor (secure) connections and that programs like Sendori or FiddlerRoot can intercept connections and send their own certificate instead of the website's certificate.
*Note that it is not recommended to add a permanent exception in cases like this, so only use it to inspect the certificate.

I noticed that I get a "This Connection is Untrusted" error in Firefox. I use KIS 2015. I reseted Firefox. Pls advise

I've just installed the latest version of KIS and now I"ve noticed that I get a "This Connection is Untrusted" error in Firefox whenever I try to go to either of those websites. I reseted Firefox. I am unable to open anything through firefox-- my yahoo mail, google accounts, search through google, etc. Any suggestions on how to get firefox to work?

http://www.ehow.com/how_11385212_troubleshoot-reset-connection-firefox.html
https://support.mozilla.org/en-US/kb/server-not-found-connection-problem
https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can
https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message
https://support.mozilla.org/en-US/kb/connection-untrusted-error-message
'''http://kb.mozillazine.org/Error_loading_websites'''
'''This Connection is Untrusted''' is sometimes caused because the
computer system clock is wrong. Check the time / date / time zone settings.

This Connection is Untrusted how do I fix this?

Ok for the past few days now I have been getting This Connection is Untrusted on sites like google and facebook and my clock is set right so I have no idea what to do and I also keep getting pages that look like this http://gyazo.com/e6ec92875781ee25ac3bcd3783e08b5f.

A common problem recently is Firefox not being set up to work with your security software. Some security suites include a filtering feature. In order to filter secure connections (HTTPS URLs), the security software presents a fake certificate to Firefox so it can intercept and stand in the middle of the secure connection. To have Firefox trust these certificates, you may need to do something such as import a root certificate, or click something in your security software's settings.
But I'm not aware of Norton causing this problem, so I'm suspicious that it's something less benign.
If you have added Exceptions, please check the "Issued by" section on one or two of the exceptions you've made to learn more about the source of this issue.
orange Firefox button (or Tools menu) > Options > Advanced > Certificates mini-tab > "View Certificates" button > Servers tab
Click a certificate and use the View button. The kind of issuer you might find is:
Name associated with your security software, such as ESET, BitDefender, etc.
Sendori (indicates unwanted software from Sendori)
FiddlerRoot (indicates unwanted software named similarly to BrowserSafeguard, BrowserSafe, SafeGuard)
Something else
If you have not added Exceptions, you can click the Add Exception button in the error page, then in the dialog click View Certificate or Get Certificate to see the Issued by section. You do not need to finish adding an exception.
What do you see?
See also
*https://support.mozilla.org/en-US/questions/993651?

How do i fix "This Connection is Untrusted"

"This Connection is Untrusted" I can't find a way to fix this and i have done the time and date way but i does not work. And i just can't find a way to get it to work.

Check the date and time in the clock on your computer: (double) click the clock icon on the Windows Taskbar.
Check out why the site is untrusted and click "Technical Details to expand this section. If the certificate is not trusted because no issuer chain was provided (sec_error_unknown_issuer) 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 of the certificate.
You can see more Details like intermediate certificates that are used in the Details pane.
If "I Understand the Risks" is missing then this page may be opened in an (i)frame and in that case try the right-click context menu and use "This Frame: Open Frame in New Tab".
*Note that some firewalls monitor (secure) connections and that programs like Sendori or FiddlerRoot can intercept connections and send their own certificate instead of the website's certificate.
*Note that it is not recommended to add a permanent exception in cases like this, so only use it to inspect the certificate.

FireFox is blocking many sites and says This Connection is Untrusted

many sites is blocked by firefox like facebook , yahoo mail and even this site.
its saying This Connection is Untrusted
and this sites working on other browsers
and i'm sure that the pc date is right and up to date
so what???

I have been having the same problem, chased my tail around for ages and then realised that my system clock was out of date because my laptop battery is toast.
I reset my clock to today's date and the certificate errors disappeared.
Check your clock?

I am so tired of firefox telling me "This Connection is Untrusted"!!!!!!!!

'''I am so tired of firefox telling me "This Connection is Untrusted"!!!!!!!!''' I'm tired of having to add exceptions, I'm tired of the extra tiny lag time of loading while it checks sites, I'm tired of typing the URL I want into the URL window only to look up to see that the lag time has now caused my cursor to stop typing in the URL window and start searching in my Google homepage halfway through my typing!!
Firefox, '''GIVE US A CHOICE of whether we want secure browsing on or off''' or I am OFF YOU and onto another browser!!!~~!!~!~!!!~!!! Quit forcing things on us like Facebook does with no options to opt in or out if we so choose.

Check the date and time in the clock on your computer: (double) click the clock icon on the Windows Taskbar.
*https://support.mozilla.org/kb/Secure+Connection+Failed
Rename the file cert8.db to cert8.db.old in the Firefox Profile Folder to remove all intermediate certificates that Firefox has stored by visiting secure websites. 
If that helped to solve the problem then you can remove the renamed file cert8.db.old unless you have user certificates that you may want to export first and import them in the new file. 
Otherwise you can restore the certificates by renaming (copying) the file back to cert8.db 
Firefox will automatically store new intermediate certificates when you visit websites that send them.

I just downloaded the new version of Firefox and now every site I used to use such as Facebook, Twitter, and Youtube show "This Connection Is Untrusted"

I just downloaded the new version of Firefox and now every site I used to use such as Facebook, Twitter, and Youtube show "This Connection Is Untrusted". Even when I do accept the risks the site no longer looks the way it's looked for years. Twitter doesn't even give me the option to accept the risks at all and shows this error (Error code: sec_error_unknown_issuer). I've tried resetting Firefox, I've checked the time and date, and I've removed and added Firefox to see if that would work. Nothing seems to be working so I can see the sites the way they normally would be instead of "coded". Can anybody help me please?!!! Thanks

ok, unfortunately the fiddler2.com issuer in certificates might be a sign of unwanted software present on your pc that is intercepting secure network traffic. please go into the system control panel and uninstall programs like BrowserSafeguard, BrowserSafe, SafeGuard or other software that sounds suspicious and didn't get installed by you intentionally.
reference: https://support.mozilla.org/en-US/questions/982532#answer-520145
afterwards, run a full scan of your system with different security tools like the [http://www.malwarebytes.org/products/malwarebytes_free free version of malwarebytes] & [http://www.bleepingcomputer.com/download/adwcleaner/ adwcleaner].
[[Troubleshoot Firefox issues caused by malware]]

While replaying ajax truclient scipt in loadrunner i am getting "this connection is untrust" error in the 40th step. I tried by deleting cert8 file but no use

while replaying ajax truclient script in loadrunner 11.0, getting error "this connection is untrust" page in 40th step. Add this exeception permanently check box is disable when i got the exeception certificate file. i tried with by deleting cert8.db file in loadrunner ajax truclient profile but still same result.
can any one guide me to resolve this issue...

Is that content loaded in an iframe?
You can check that via the right-click context menu to see if there is a "This Frame" item. 
If that is the case then try top open the frame in a new tab or otherwise check the Technical Details of the error message.

"This Connection is Untrusted" - My PC clock is correct, but...

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