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firefox sec_error_unknown_issuer

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Facebook, google ERROR sec_error_unknown_issuer in Fresh Firefox 35 windows 8.1

Windows 8.1 64-bit Firefox 35 (Latest) - Fresh Installed firefox 35 - Even refreshed Firefox with safe-mode - when opening page google.com, facebook.com (Attached Image) getting error page that should not be the error/exception. - This is not for the

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. Twi

Have been using firefox for years but now having many problems two days ago could not acess any web pages without a firefox message saying page could not be ver

Went on the internet on Friday but a box appeared saying firefox could not verify web page and somebody could be trying to impersinate the web page this was my home page it gave me two options the first was get me out of here or that I understood the

Been using Firefox for years, yesterday not able to get Firefox page at all, page comes up blank

I have been using Firefox for years. Somehow I seem to have blocked it. I get a blank page when trying to enter the site. What to do? thank youCan you attach a screenshot? *http://en.wikipedia.org/wiki/Screenshot *https://support.mozilla.org/kb/how-d

Sec_error_unknown_issuer for a certificate trusted by every other browser

Dear Forum mebers, I completely gave up this, so I hope somebody may have seen this issue and could resolve it :) We have an intranet corporate site, based on Windows Server 2012 R2 IIS server. I built up a single, WS2012R2 Standalone Root Certificat

I can no longer access facebook, yahoo, even firefox support from the webbrowser!

I do not have any problem connecting to these websites from IE. What is going on with firefox? YAHOO - "This Connection is Untrusted - You have asked Firefox to connect securely to www.yahoo.com, but we can't confirm that your connection is secure. N

I can no longer access facebook, yahoo, even firefox from the webbrowser!

''locking this thread as duplicate, please continue at [https://support.mozilla.org/en-US/questions/1028681 /questions/1028681]'' FACEBOOK - "This Connection is Untrusted - You have asked Firefox to connect securely to www.facebook.com, but we can't

I have a server runnng on Mac OS 9.2.2 with a secure certificate from Verisign. Apparently some Firefox users get a message warning that the issuer is unknown to them. Verisign is perhaps the best-known issuer of certificates

Note: I am in the process of moving the site to our central server so all pages, with the exception of the secure ones and the homepage, are redirected. See https://www.homelink-usa.com/secure/subscribe/subscribe.lasso which is secure and, in my brow

Since updating to newest firefox i am blocked from facebook, google and youtube.

Just updated and i keep getting messages that i can't connect to some websites because it can't confirm my connection is secure. I am able to get it to make an exception for google and it works normally but when i try to do it for youtube i just get

Firefox will not connect to Tumblr, Facebook, and Google sites.

I had an issue where my computer completely froze up and I had to force restart. When I logged back on, Firefox no longer trusted Google or Facebook. Youtube seems ok, it's just sites with "google.com" in the URL... and Facebook. Here's the erro

Firefox won't launch facebook, but it does launch in Internet Explorer. How do I get it to launch in firefox?

When I try to launch facebook, an error message stating it is a untrusted site. But when I launch facebook in internet explorer it launches with out a problem. How do I get it to launch i n firefox? Yes the clock on my computer is set at the correct

Firefox does not trust Google or Gmail

Firefox will not access Google or Gmail or even the bits of Mozilla needed for some support functions. The issue seems to be an unrecognised certificate, tho' Internet Explorer has no problems with the same certificate from these sites. I have read t