Disabling untrusted connection warning, or adding issuer without certificate?

I am using Firefox (20) in an environment where I am required to use a proxy to access any external websites, and the proxy has recently been changed in such a manner that it now intercepts HTTPS requests and seems to reissue the certificates from a new identity.
This means that every page I visit that uses HTTPS shows the 'untrusted connection' warning page. I can, of course, add exceptions - but I don't want to have to do this for every secure page (and every subdomain, including those only used for serving up images or stylesheets, etc).
Is there any way to.. disable the warning page? Add an exception for "*"? Add the identity that the certificates are being reissued under to my trusted list (I don't have access to the certificate file)?
Neither Chrome or IE exhibit this behaviour under the same conditions.
NB: Troubleshooting info attached is from a different computer.

You will have to acquire the root certificate of this proxy and install it in Firefox to prevent such an untrusted message. 
If you have this certificate in IE or Google Chrome then export it and import in Firefox. 
You can inspect the certificate chain in those browser to see how they link it to a built-in root certificate. 
You need to set the trust bit to trust this certificate for web pages.

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Disable untrusted connection warning

There's a particular internal site that I am working on. it has a valid self signed SSL certificate.
When I go to this site in Firefox I get this message under "technical details"
The certificate is not trusted because it is self-signed.
(Error code: sec_error_ca_cert_invalid)
Then I click on "add exception" because, yes, I know it is self signed. The "certificate status" section says
Valid Certificate
This site provides valid, verified identification. There is no need to add an exception
And the confirm button is greyed out. So I can't go to the site because it is self signed and I cant add an exception because it's properly self signed.

The following approaches have been suggested in past threads and bug reports:
* Clear Firefox's cache (not sure this works) Edit menu > Preferences > Advanced On the Network mini-tab > Cached Web Content : "Clear Now" ''If you have a large hard drive, this might take a few minutes''
* "Forget about this site" - this will clear cache, history, bookmarks, and permissions for the site, and apparently also a saved certificate Open History > Show All History, right-click an entry for the site > "Forget about this site" ''or'' Type or paste about:permissions in the address bar and press Enter > select the site > click the "Forget about this site" button
* Reset Firefox See this article: [[Reset Firefox – easily fix most problems]].

I keep getting an "untrusted connection" warning for nearly every url including my banks and have to go through the "confirm exception" etc steps. How can I keep having to go through this?????

I keep getting the untrusted connection warning and have to go thru all these freaking steps to get access and it happens OVER and OVER again for the EXACT same sites. One example is below citibank.com. MY BANK. EVERY TIME.
== URL of affected sites ==
http://www.citibank.com

Hi there, I was getting the same type problems whenever connecting to a secure site. The problem was caused by my PC's clock. I had manually set the date back a few years to test an app that I was developing. As soon as I corrected the time, all connections were OK again.

Not given the option to bypass untrusted connection warning

When using Firefox on my company laptop for work, i get the untrusted connection error message when trying to enter many of the internal services such as the HR portal, Travel&Expense Report app, etc. Normally, I would just click 'I understand these risks' and add an exception, as I have done before and as your published help article suggests. However, for these sites the 'I understand these risks' option does not even appear and so I have no way to bypass this error message and access necessary sites for my job. Is there an alternative way to bypass this, or a way to temporarily turn off the service entirely so I am not stopped by the warning? What can I do to resolve this issue?
Thank you

Can you post a link to a publicly accessible page (i.e. no authentication or signing on required)?
Note that it is not recommended to add a permanent exception in cases like this, so only use it to inspect the certificate.
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.

Modify google search redirection after bypassing untrusted connection warning

'''The problem:''' my default google search is redirected to google home, i.e. the 1st search is lost, I cannot perform it through google search engine bar (to the right of location bar), and I can only do this through the web page.
'''How we got here:''' I was getting a "connection untrusted" message (see [http://support.mozilla.com/en-US/kb/This%20connection%20is%20untrusted?s=security+certificates&r=3&as=s#w_bypassing-the-warning This connection is untrusted] ) for some open tabs with google searches I had from previous sessions. So, I thought I would get rid of them by creating an exception for Google. Instead, every search I do through a bar is redirected right away to Google home page (ie. instead of ignoring the certificate and keep loading the page, firefox redirects me to www.google.com, this way cutting the search next to it).
'''Actions I've taken:''' I resolved the problem for the location bar by modifying the about:config "keyword.URL", by setting a string (say "https://www.google.com/search?q=")
'''Current status:''' However, this doesn't change the status of the '''Google search engine bar''' to the right of the location bar. In short, the '''"default"''' is still hurt and I need to trace it and fix it not to redirect.
'''Question:''' Where can I find and delete the redirection I created while dealing with the "untrusted connection" message?

'''Thanks!''' I found it and deleted it!
I'm now back in the "connection untrusted" situation, but at least there is no automatic redirection and I can work this out in peace...

Disable untrusted website warning

I've been with Firefox almost from the beginning. Not being able to disable the untrusted website warning smacks of the sort of fascist paternalism that made us all turn away from Microsoft. I know there are workarounds. My point is: we shouldn't have to do this. We should have a choice. I'm sorry, but I'm giving Firefox the flick until it changes its policy. It's a good browser, but the principle is very important. Vote with your cursors folks, it's the only way to make this once-humble organisation listen.

The following approaches have been suggested in past threads and bug reports:
* Clear Firefox's cache (not sure this works) Edit menu > Preferences > Advanced On the Network mini-tab > Cached Web Content : "Clear Now" ''If you have a large hard drive, this might take a few minutes''
* "Forget about this site" - this will clear cache, history, bookmarks, and permissions for the site, and apparently also a saved certificate Open History > Show All History, right-click an entry for the site > "Forget about this site" ''or'' Type or paste about:permissions in the address bar and press Enter > select the site > click the "Forget about this site" button
* Reset Firefox See this article: [[Reset Firefox – easily fix most problems]].

I have used a website for years, now I get an untrusted connection warning. How do I progress?

Using FF 9.0.1
www.corp.delaware.gov gets me a "Connection Untrusted" note. Error code : ssl_error_cert_domain. Never happened before. Just used my wives desktop and it went through normally.

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.

When try to access GE Money website I get an Untrusted Connection warning

The error reads
www.gemoney.com uses an invalid security certificate.
The certificate is not trusted because no issuer chain was provided.
(Error code: sec_error_unknown_issuer)
I dont get this warning with Ie. Is this a FF5.0 issue? Any help would be appreciated.

It sounds like you have a third party program that has taken over your search engine, home page, and/or the default new tab page. Fortunately, this can be remedied easily:
# At the top of the Firefox window, click on the Firefox button (Tools menu in Windows XP), and then click Add-ons. The Add-ons Manager tab will open.
# In the Add-ons Manager tab, select the Extensions panel.
# Select the toolbar you wish to remove.
# Click the remove button.
# Click "Restart now" if it pops up. Your tabs will be saved and restored after the restart.
After Firefox restarts, install the [https://addons.mozilla.org/en-US/firefox/addon/searchreset/ Search Reset Tool]. This will remove the rest of the traces of this program from your Firefox.
For further information, please read [[Remove a toolbar that has taken over your Firefox search or home page]].
Did this fix the problem? Let us know!

I'm not able to go to Twitter. I get an Untrusted Connection warning and all it has as an option is "Get me out of here" What's wrong?

For maybe a week or so I can't go to Twitter. I've tried reading through similar problems on here and don't know what to do. Some things I've see often are check time and date and reset firefox. None of those work. Any suggestions? Also, I would need detailed suggestions since I don't know a lot about computers. Thank you.

HI Jean06,
I have a few suggestions:
# Check if the two urls give you different pages:
https://twitter.com, https://www.twitter.com and http://www.twitter.com
# Follow these instructions [https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message?redirectlocale=en-US&redirectslug=Secure+Connection+Failed]
# Check [https://support.mozilla.org/en-US/questions/988376]
Thank you!

How to fix an untrusted connection that uses a invalid security certificate?

My network admin is blocking some of my other family over some internet crap, and updated the dns block on my internet to prohibit some of their habits. unfortunately, this blocks some of the sites i use (nothing inappropriate), so i am trying to get the tor browser. but Firefox gives me the warning whenever i attempt to get onto the page.(torproject.org) how can i get this site without allowing any other malicous sites in?

What is the warning? This will give a better ideas how to do this. If the network admin has blocked certain sites, you may also want to contact the network admin how to allow the site. On an open network I could connect to the site without warning.

Why does Firefox not allow me to go to Facebook, consistently says "untrusted connection"??

I have read through all of the responses to this exact questions posed by other users and nothing is working. What is the most frustrating is that this is not a constant issue. One minute I will be logged onto Facebook and when I try to visit a friends page or post something it will freeze, then the "untrusted connection" comes up. Or it will be working fine for a couple hours and I will log off of Facebook, when I come back a few hours later, or even a few minutes later I get the "untrusted connection" warning again. This has happened more now that Firefox has been updated and it is also happening to my roommate. She will be logged onto Facebook and I will try and get the warning, or vice versa. We are in the same room on separate computers. This problem does not occur on Google Chrome or Internet Explorer. This is an issue with Firefox, not my computers. We have four computers (2 Desktops, 2 Laptops) in our home, my boyfriend works in IT. We have done everything suggested by the people here and nothing works. I would understand if it was happening to one computer constantly and you tried to tell me it was my computer, but that is not the case. This happens with all four computers at different times. How can one person be logged on to Facebook and another isn't, then an hour later it will work on the latter computer and not the one it was working on previously. This is very frustrating. I love using Firefox over Internet Explorer and Google Chrome, I trust it more. But this is getting ridiculous. It has been happening for a long time, it just got worse with the update. Please help. It happens with Google and other popular sites as well.

This is what it says, every time for me
''''''''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.
''''''Technical Details''''''
www.facebook.com uses an invalid security certificate. The certificate is only valid for the following names: *.akamaihd.net, *.akamaihd-staging.net, a248.e.akamai.net (Error code: ssl_error_bad_cert_domain)

MS Exchange 2010 Outook Web App "Untrusted Connection" error in Firefox. No issue with IE or Chrome

I installed Microsoft Root CA Certificate on my Computer. (For Exchange 2010 Outlook Web Access) But Firefox appear "This Connection is Untrusted" error ((Error code: sec_error_unknown_issuer)). IE and Chrome works fine.
My firefox version is 18.0.1.
I want to fix this issue without adding a exception. Please help.

Try to export those certificates in IE and import the certificates in Firefox.
*Tools > Options > Advanced : Encryption: Certificates - View Certificates
If this is to be a root certificate then you need to set the applicable trust bits.

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.

Help please!! Untrusted connection no issuer chain provided...

firefox untrusted connection no issuer chain was provided...
I cannot browse almost any website without receiving this error. I've tried the adjusting the date/clock and I've deleting the cert8. data in the profile for firefox. Nothing is working.
Also, when I view certificates, it says that it won't be enabled until 7/21/2014?? What's up with that?
Can anyone please help me...?

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 have deleted all my videos songs and photos from my iphone 4 but when i connect to itunes it still shows 17gb free. how can I solve this issue without restore. Total storage of my iphone is 32 gb.

I have deleted all my videos songs and photos from my iphone 4 but when i connect to itunes it still shows 17gb free. how can I solve this issue without restore. Total storage of my iphone is 32 gb.

I don't see an issue, but if you mean why didn't you get most of your memory back you need to see what else is using storage. Go to Settings/General/Usage. Wait a bit for it to calculate storage allocation, then when it finishes you can see how much storage each app uses.

Disabling untrusted connection warning, or adding issuer without certificate?

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