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Receiving SEC_ERROR_UNKNOWN_ISSUER on all sites because of which I am unable to access anything

The issue is with my firefox installed on my dell inspiron, working on windows 8.1. I am unable to access any site, even the google home page does not open and displays "… (funda kabanzi)

The issue is with my firefox installed on my dell inspiron, working on windows 8.1. I am unable to access any site, even the google home page does not open and displays "Insecure connection" with error code: SEC_ERROR_UNKNOWN_ISSUER. I am writing to you from my computer but the problem is with firefox installed on my dell inspiron. I tried to download some malware scanners mentioned on the mozilla support site but I'm unable to load any site on the laptop.

Asked by NidhiS 4 iminyaka edlule

Last reply by jscher2000 4 iminyaka edlule

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Since upgrade to 43.0.3 no certifcates work unless I back date system to 12/2015

Since the beginning of the year none of the sites I visit that require a certificate work. If I back date my system to say 12/23/2015 they work fine. I don't seem to ha… (funda kabanzi)

Since the beginning of the year none of the sites I visit that require a certificate work. If I back date my system to say 12/23/2015 they work fine. I don't seem to have this issue with Internet Explorer. I'm not sure if this is a date issue or and issue with version 43.0.3 which I installed on 1/2/ 2016. Help!

Asked by SchuylerFarms 4 iminyaka edlule

Answered by SchuylerFarms 4 iminyaka edlule

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Can't Search in Firefox with Windows 10

I followed the instructions in "This Connection is Untrusted" error message appears - What to do and deleted cert8.db. I restarted Firefox but the problem persisted … (funda kabanzi)

I followed the instructions in "This Connection is Untrusted" error message appears - What to do and deleted cert8.db. I restarted Firefox but the problem persisted

Asked by h_g 4 iminyaka edlule

Answered by jscher2000 4 iminyaka edlule

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I can not access google.com and some other https sites but not all.

Yesterday I installed FF 43.0 - 64bit. I did as clean install as I could, uninstalled old version, and deleted from HDD every "mozilla" and "firefox" directory I could fi… (funda kabanzi)

Yesterday I installed FF 43.0 - 64bit. I did as clean install as I could, uninstalled old version, and deleted from HDD every "mozilla" and "firefox" directory I could find. Since then, I am unable to access next sites (I believe list is not complete): https://www.google.com/ https://www.facebook.com/ https://www.google.com/maps https://www.google.rs/?gws_rd=ssl

Error msg is alwaays the same: "You have asked Firefox to connect securely to www.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. This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox only connect to it securely. As a result, it is not possible to add an exception for this certificate. Technical details: www.google.com uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown. The server might not be sending the appropriate intermediate certificates. An additional root certificate may need to be imported. (Error code: sec_error_unknown_issuer)"

Sites that I can normaly access with this FF are: https://support.mozilla.org/en-US/ https://translate.google.com/ https://mail.google.com/

All other browsers can access all sites without problems.

Asked by DrStrangeloveSR 4 iminyaka edlule

Answered by cor-el 4 iminyaka edlule

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After clicking on a prompt to refresh Firefox, I lost my add-ons and many websites give me "This Connection is Untrusted" and won't load correctly.

I foolishly responded to a prompt on my screen suggesting there was a problem with Firefox. I clicked Refresh Firefox and seemed to be on a genuine page. After that I had… (funda kabanzi)

I foolishly responded to a prompt on my screen suggesting there was a problem with Firefox. I clicked Refresh Firefox and seemed to be on a genuine page. After that I had lost my add-ons, like Ghostery. All attempts to access it failed as I either got an 'Untrusted Connection' message or simply a list of words from the website (in blue). Even the page for add-ons from the Firefox menu does not work. Then I discovered that other pages like Yahoo, gmail, and Wunderground gave the same problem. Firefox has become unusable. I uninstalled it and renewed it, to no avail.

Asked by digbythrust 4 iminyaka edlule

Answered by philipp 4 iminyaka edlule

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This Connection Is Untrusted

Hi I have a client who has firefox installed on a windows 7 machine and it is getting blocked from attempting to access many reputable websites such as google mail etc. I… (funda kabanzi)

Hi I have a client who has firefox installed on a windows 7 machine and it is getting blocked from attempting to access many reputable websites such as google mail etc. I have tried every potential fix there is and cannot get rid of this error from occuring. I reinstalled firefox, deleted the cert file, cleared the cache/history. I still get blocked when manually typing in websites with https in the address

For some reason I am not offered the "i understand the risk option" to bypass the error. All I see is the "Get me out of here" option

Let me know if there are any other potential fixes.

Asked by BigL 5 iminyaka edlule

Answered by BigL 5 iminyaka edlule

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untrusted connection

Hi, I keep getting this untrusted connection message. I have tried posted solutions for the "this connection is untrusted" problem Firefox seems to be having. It occurs o… (funda kabanzi)

Hi, I keep getting this untrusted connection message. I have tried posted solutions for the "this connection is untrusted" problem Firefox seems to be having. It occurs on any website I try to go into. I have tried changing date and time, running Norton antivirus scans (I have Norton 360 premier installed), change information using about:config setting, uninstalled and reinstalled Firefox and deleted "cert8.db" file, but nothing seems to work.

I tried adding images but can't attach them for some unknown reason. I am using internet explorer to send this message since Firefox not working. The error code I keep getting on every website, even on Firefox support websites are (Error code: sec_error_unknown_issuer) (Error code: sec_error_cert_signature_algorithm_disabled)

What do I do next?

Asked by Lthomas2 4 iminyaka edlule

Answered by Lthomas2 4 iminyaka edlule

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How to install firefox in windows 7 after getting "this publisher has been blocked" warning.

Here's the back story in case it helps... I upgraded windows 7 to windows 10, had many performance issues with windows 10 and reinstalled windows 7. After the reinstall… (funda kabanzi)

Here's the back story in case it helps... I upgraded windows 7 to windows 10, had many performance issues with windows 10 and reinstalled windows 7. After the reinstall, I tried to download mozilla firefox again and install the browser. When I try to run the setup file for firefox I get a message that reads: "This publisher has been blocked from running software on your machine." The only option is to click "OK". There is no way to ignore the security warning and proceed with the install. I have had no trouble installing any other software (IE and Chrome included). I have tried starting windows in safe mode, but I still get the same warning. I do have administrator privileges while running the setup. I have found other forums addressing similar issues, but have not found a solution for my specific case yet. I have attached a screen capture of the security warning window so you can see there is no way to proceed. If I click the windows help link, it goes nowhere.

Asked by tomawesome39 4 iminyaka edlule

Answered by tomawesome39 4 iminyaka edlule

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I keep getting "This Connection is Untrusted" for multiple sites. I thought it was kaspersky. removed it. and problem still happens

I keep getting the error: This Connection is Untrusted I thought it was kaspersky, removed it, and problem still occurs. I've tried clearing all history, but problem stil… (funda kabanzi)

I keep getting the error: This Connection is Untrusted I thought it was kaspersky, removed it, and problem still occurs. I've tried clearing all history, but problem still happens. I happens on multiple sites. not just one. Any suggestions or things to check for? I have also tried the refresh firefox option. once I get this error, I try a few time clearing history. then have to restart the computer. it works sometimes.

Asked by MonkeyB 4 iminyaka edlule

Last reply by FredMcD 4 iminyaka edlule

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hates problem

I installed the httpseverywhere add-on. I don't know if it has anything to do with the problem I am having but every time I try to access a page nearly all pages but not … (funda kabanzi)

I installed the httpseverywhere add-on. I don't know if it has anything to do with the problem I am having but every time I try to access a page nearly all pages but not quite all I get a warning instead of what I am looking for. The warning reads This Connection is Untrusted You have asked Firefox to connect securely to... (some URL (the one on my screen now is "add-ons.mozilla.org")), but we can't confirm that your connection is secure.... The goes on with explanation of why this could be as well as what I should do about it. It then gives me a button that reads "Get me out of here" and a link "Technical Details" I have tried everything including resetting Firefox to its original settings, reinstalling Firefox, uninstalling and reinstalling Firefox. The computer is a Dell Latitude, I just upgraded it to Windows 10 and installed Firefox. Do I need to revert to Windows 7.1? How can I get my favorite Web browser back to usability?

Asked by TingisBob 4 iminyaka edlule

Last reply by cor-el 4 iminyaka edlule

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untrusted connection

Hello! I have run into an issue, for some reason Firefox is seeing Twitch.tv a common and popular Streaming website as a Mixed Content site and Not trusting it as a secur… (funda kabanzi)

Hello! I have run into an issue, for some reason Firefox is seeing Twitch.tv a common and popular Streaming website as a Mixed Content site and Not trusting it as a secure connection therefor not allowing me to proceed and view the site. I was curious is there a way for me to access Twitch and other sites that may have the same issue? Sites such as Youtube work completely fine, I have included a print screen of the issue.

Thank you for your time! All Help and suggestions are appreciated! 

-Christian

Asked by Cmreasoner 4 iminyaka edlule

Answered by FredMcD 4 iminyaka edlule

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pfSense cert was trusted and now is not (nor can I manually do it)

So I've upgraded pfsense (which has my own self-signed cert for the GUI) to 2.3. For some reason, this has broken management for it via Firefox. It still works with Chrom… (funda kabanzi)

So I've upgraded pfsense (which has my own self-signed cert for the GUI) to 2.3. For some reason, this has broken management for it via Firefox. It still works with Chrome.

Here is the error- The connection to 192.168.50.1:449 was interrupted while the page was loading.

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

What I have done to try to rectify this.... 1) Checked that both time of pfsense and my computer match (they do and Chrome works right with this anyway.) 2) Manually imported both the CA and cert. 3) Deleted cert8.db and let FF recreate it. 4) Tried a new profile (which works once and then fails as soon as FF is restarted.) 5) Tried on both Windows and Linux (neither side works.) 6) Generated a new cert for the GUI (which Chrome again just accepts but FF refuses.)

FF version is 45.0.1

I haven't seen anything else that addresses this. The key did not change in the upgrade. Even had it done that, I would think that by generating a new cert entirely should prompt for making a permanent exception again.

I've narrowed it down to FF as both Chrome and Vivaldi work perfectly on it. Nothing seems to have helped and the FF landing page doesn't reveal any useful info (as in SEC_ERROR_INSECURE_CIPHER or the like.)

Any help is very much appreciated as I hate opening Chrome solely to manage my firewall.

Asked by blueduckdock 4 iminyaka edlule

Answered by blueduckdock 4 iminyaka edlule

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Your connection is not secure

Just made a new login on my iMac. Downloaded Firefox 46.0.1. Got "your network is not secure" on literally every page. Messed with some settings and was able to work (don… (funda kabanzi)

Just made a new login on my iMac. Downloaded Firefox 46.0.1. Got "your network is not secure" on literally every page. Messed with some settings and was able to work (don't know which). Downloaded some add ons like HTTPS everywhere, uBlock Origin). Was working fine. Tried to get Pocket add on and everything crashed twice. Deleted Avast, didn't fix. Deleted and reinstalled Firefox, still nothing. I can't even access my add ons page.

Asked by BD0000 4 iminyaka edlule

Last reply by FredMcD 4 iminyaka edlule

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SSL_ERROR_INAPPROPRIATE_FALLBACK_ALERT on specific website

Hi there, I'm trying to troubleshoot an issue that seems to be specific to FireFox and a specific website. If you browse to www.denali.gov with FireFox, and then on the r… (funda kabanzi)

Hi there,

I'm trying to troubleshoot an issue that seems to be specific to FireFox and a specific website.

If you browse to www.denali.gov with FireFox, and then on the right side of the page click on "Denali Commission Project Database", FireFox will first pop up a message that says: "Your connection is not secure"

Here is a direct link to the page: https://www.denali.gov/dcpdb/index.cfm?nossl=true&fuseAction=Indicators.ShowProjectMapLink

Then if you click on Advanced and click the "(Not secure) Try loading www.denali.gov using outdated security" that page will fail to load with the following error message:

"An error occurred during a connection to www.denali.gov. The server rejected the handshake because the client downgraded to a lower TLS version than the server supports. Error code: SSL_ERROR_INAPPROPRIATE_FALLBACK_ALERT"

Before anyone says "have you tried searching our forums or Google?", I've been researching this issue for the past hour and have not been able to come up with a solution. I checked the TSL settings on the "about:config" page and changed the version.min settings, but that does not fix the problem.

I have not been able to come up with anything, and so I turn to you guys... :-)


Has anyone seen this issue before and has a fix? The error is easily reproducible: Browse to the page using FireFox and I'm sure you'll see the same error.

However, the page loads fine in other browsers. Except, I don't want to use other browsers; I want to use FireFox.

Asked by Aschoonbeek 4 iminyaka edlule

Answered by jscher2000 4 iminyaka edlule

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untrusted connection

I have tried to follow all the support pages presented on this topic, but to no avail. I have uninstalled Firefox and downloaded a fresh copy, but that did not help eith… (funda kabanzi)

I have tried to follow all the support pages presented on this topic, but to no avail. I have uninstalled Firefox and downloaded a fresh copy, but that did not help either. Maybe there must be some file left behind which is affecting the new copy, but I can not find it.

I have never had this problem before. It is effecting sites like Google, etc.

So basically all https sites are untrusted connections

I need a fix or I will be forced to stop using my favourite browser.

Asked by nedkelly47 5 iminyaka edlule

Last reply by cor-el 4 iminyaka edlule

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Why is the mozilla.org site untrusted? "You have asked Firefox to connect securely to www.mozilla.org, but we can't confirm that your connection is secure."

Just downloaded firefox for mac and get their own server as a security warning.....not very promising. This Connection is Untrusted You have asked Firefox to connect secu… (funda kabanzi)

Just downloaded firefox for mac and get their own server as a security warning.....not very promising.

This Connection is Untrusted

You have asked Firefox to connect securely to www.mozilla.org, 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.

Asked by georgewachs 4 iminyaka edlule

Answered by jscher2000 4 iminyaka edlule

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Firefox considers Add-ons link and all links untrusted

Firefox considers Add-ons link and all links untrusted. I can't even connect to disable add-ons. I reinstalled firefox and it was working then it stopped all my connect… (funda kabanzi)

Firefox considers Add-ons link and all links untrusted. I can't even connect to disable add-ons. I reinstalled firefox and it was working then it stopped all my connections as untrusted. Guys, you have a problem here. I'm not the only one. Is this a Firefox/Lastpass issue?

Asked by edspyhill09 4 iminyaka edlule

Last reply by edspyhill09 4 iminyaka edlule

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"Untrusted Site" pop ups won't let me into some sites

Mozilla. I have a Windows 7 desk top 64 bit computer. Since installing both as 32 bit and 64 bit Firefox these past two days, It has become impossible to access some si… (funda kabanzi)

Mozilla. I have a Windows 7 desk top 64 bit computer. Since installing both as 32 bit and 64 bit Firefox these past two days, It has become impossible to access some sites including my blog on blogger (www.limesstones.blogspot.com) and the Familysearch.org website. I am sharing here just one image.

I did the following that did not change anything:

"KB Solution ID: KB3126 |Document ID: 14085|Last Revised: December 11, 2015":  " http://support.eset.com/kb3126/?viewlocale=en_US ".

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I do have ESETNOD32 antivirus on my computer. I have no idea what other websites that I can't access as I've been 'stuck' just trying to get these two to open up for 3 days now. I recently changed from a Windows XP computer where I had no problems at all like this using Firefox.

So, if anyone has any idea what else I can do, please let me know. Thank you. Screen prints are below. I added the certificate for Familysearch.org and how it looks like screen with the big white background and is not operational as a website.

Asked by LindaEllis 4 iminyaka edlule

Last reply by cor-el 4 iminyaka edlule

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i have a problem ! i can't find and help here !

i have latest version ! I try to uninstall and install again ... i try to turn off my wi-fi and turned on it again :p but still the problem ! and make me angry ! damn … (funda kabanzi)

i have latest version ! I try to uninstall and install again ... i try to turn off my wi-fi and turned on it again :p but still the problem ! and make me angry ! damn

Asked by Lahcen2010 4 iminyaka edlule

Last reply by nrlx 4 iminyaka edlule

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ERROR CODE: SEC_ERROR_OCSP_INVALID_SIGNING_CERT

Firefox does not allow me to open this site: https://www.mysubs.co.za/ . It gives the following error code :SEC_ERROR_OCSP_INVALID_SIGNING_CERT. This is the site that I … (funda kabanzi)

Firefox does not allow me to open this site: https://www.mysubs.co.za/ . It gives the following error code :SEC_ERROR_OCSP_INVALID_SIGNING_CERT.

This is the site that I read my local newspaper on daily.

It is opening fine on other browsers like Chrome

Asked by greenleader 3 iminyaka edlule

Answered by cor-el 3 iminyaka edlule