I suddenly get this connection is untrusted after being on website for five minutes with it working perfectly I want to turn this off.

I was on the website like five minutes with it working perfectly. My firefox install is new as of two days ago. It suddenly decided the website's certificate is not updated. It wasn't updated five minutes ago, but was working perfectly then. I do not give a ''durn'' what firefox thinks. I want to see this website. There is no ignore this BS and take me to my website button. I want to know how to turn this off permanently. I tried updating firefox and I still have the same issue. Make it stop. My firefox is updated as of five minutes ago to the very newest version. My windows version whatever is also automatically updated so that's not it. I do not use any local antivirus because I am behind a firewall. It can't be the firewall because other computers in my network not using firefox have no problem with the website. Also cannot be my windows because other computers which are just ghosted over copies of the same as this one one my network with same exact default settings also with no changes to them just like this one but using another web browser have no trouble at all with this website. Seriously, nothing is different on the other computers on the network except the use of firefox. They work fine for this website. Firefox brand new update even does not work. Tell me how to fix it. I tried to do the stuff listed in certain other posts here. Apparently this version of firefox is different from the versions talked about when I google because certain parts of the answer don't fit what I see when I try to follow them with this version.
''Title edited by a Moderator''

Make sure that the system time and date on your computer are set correctly.
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".
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.
Note that some firewalls monitor secure (https) connections and send their own certificate instead of the website's certificate.

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I get "This Connection is Untrusted" on every website?

I've uninstall firefox and changed the time and I can't get the bowser to work. Every single webpage gets the This Connection is Untrusted message. Every website gets the error message (Error code: sec_error_unknown_issuer). I don't have any problems with IE only firefox won't work. I just bought the computer 2 days ago so im sure its not a virus. I have Kaspersky internet security

It didn't work. I could not find KasperskyAnti-VirusPersonalRootCertificate in firefox. I have windows 8.1 so I don't have a start button. I made hidden folders viewable from the control panel, but I couldn't find the certificate

Firefox (latest versions) on both Mac 10.6 and Windows 7 show "this Connection is Untrusted" on my bank site

This started for me 1/17/2011 on the savingsbank.com website:
Firefox (latest versions) on both Mac 10.6 and Windows 7 show "this Connection is Untrusted" on my bank site https://www.savingsbank.com
NO other browsers - Explorer, Chrome, Safari - give this error box on this site. Please advise if this has to do with the bank site? or Firefox compatibility.
Saw in a forum someone else having this problem and they were told it had to do with their Date and time being off?? I've been on several computers, all with the correct date and time and they've all shown this Insecure Certificate statement on my bank site with Firefox and no other browser.

I've looked at the banking site with IE8 and it does NOT show me that "This connection is Untrusted" window. (please see attached screen shot of viewing the site with IE8) It opens fine and has "Identified by Network Solutions" showing on the address bar as it always does.
The latest version of Opera (not earlier ones) does show a problem with the website's security certificate.
We've contacted the bank about this, and they say there's no problem with their certificate but are looking into it.
My question remains, why only Firefox and one version of Opera claim this and NO other browser?

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.

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.

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]]

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

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can any one guide me to resolve this issue...

Is that content loaded in an iframe?
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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
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this problem when i change my motherbord , Happened.
i solved this , by set the time & date in windows & '''mainbord time in bois''' .
it's fixed.

How do I disable "this connection is untrusted" I visit the same web site mutiple times in a day visit I get this same error, these are trusted sites within my work

How do I disable "this connection is untrusted" I visit the same web site mutiple times in a day and every visit I get this same dam error, these are trusted sites within my work environment. This is getting really old, and I am thinking that I should just uninstall, which is a pity becuase I do like firefox

Okay, before you copy 'n paste canned responses, you should read the post first.
'''The date & time on my computer is correct''' I've already checked this.
'''I don't give a damn why the site is untrusted''', I probably know why in fact (behind corporate proxy server).
As for exporting a known good certificate from another browser, sure good idea, but it doesn't seem to work. I tried exporting from IE, Firefox did the import without complaint, but it still complains. At any rate, I don't care about that. '''I just want to permanent disable it for ALL SITES for ALL TIME'''. Is that too much to ask for?
Judging by the number of posts on this topic, apparently I am not the only one complaining about this.

I am trying to access an https site and am getting a "This connection is untrusted" message. I am willing to bypass, but when I click the Add Exception button and then try to click the Confirm Security Exception button, nothing happens.

I am trying to access an https site and am getting a "This connection is untrusted" message. I am willing to bypass, but when I click the Add Exception button and then try to click the Confirm Security Exception button, nothing happens.

unfortunately the do_not_trust 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]]

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

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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.

Every website that I try to access, I get this mesage ''This Connection Is Untrusted". Please advise.

Every website that I try to access, I get this mesage ''This Connection Is Untrusted". I tried to add exceptions, but that didn't work.

Hello,
This is generally not a good thing if you are seeing this message for all websites. Can you please check if you are seeing this issue if you open the browser in Safe Mode (instructions below).
Also, request you to scan your computer for any malware to ensure that there is no issue with some malicious software running on it.
<hr>
'''Safe Mode'''
'''Try Firefox Safe Mode''' to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
''(If you're not using it, switch to the Default theme.)''
* On Windows you can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
[[Image:FirefoxSafeMode|width=520]]
''Once you get the pop-up, just select "'Start in Safe Mode"''
[[Image:Safe Mode Fx 15 - Win]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
<hr>
'''Malware scan'''
Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try these free programs to scan for malware, which work with your existing antivirus software:
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility]
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.
Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article.

I keep getting "This connection is untrusted" in all sites when i use Firefox 36.0.1 on windows 8 laptop. How can i overcome this.

I keep getting "This connection is untrusted" in all sites when i use Firefox 36.0.1 on windows 8 laptop. How can i overcome this.

hi vijaysampath, first please make sure that the date, time & timezone are set correctly on your system. if this doesn't solve the issue (or it is already set properly), a possible solution depends on different factors:
* what is the '''error code''' shown under ''technical details'' on the error page?
in case the error code equals ''sec_error_unknown_issuer'', please attempt to add an exception on the bottom of the error page in order to inspect the certificate like it is shown on the screenshot attached:
* which '''issuer information''' does the certificate contain?
please report back with those two pieces of information. thank you!

I suddenly get this connection is untrusted after being on website for five minutes with it working perfectly I want to turn this off.

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