Firefox Nightly keeps bugging me with "This Connection is Untrusted" on every single site I visit

So I am trying out the new FireFox Nightly, as it was suggested by a friend to me. Now I am liking it at first, but when I remove all my old FireFox stuff (completely uninstalled as there was alot of useless junk/plugins/data that I wanted gone) I am now getting this "This Connection is Untrusted" message on every single site I visit! It even says that the mozilla site is dangerous. So is there any way to disable these warnings?

Hello Rykuu, also, check the time and date of your system, if the date and time on the computer are wrong then security certificates may not be valid.
which security software do you have (firewall or/and anti-virus)?
thank you

Similar Messages

Firefox says this connection is untrusted for every single site! HELP!

Every website that I have visited, says the connection is untrusted. This is getting extremely frustrating. Help will be greatly appreciated!.
Here is my firefox info:
"application": {
"name": "Firefox",
"version": "26.0",
"userAgent": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0",
"supportURL": "https://support.mozilla.org/1/firefox/26.0/WINNT/en-US/"
"modifiedPreferences": {
"browser.cache.disk.capacity": 358400,
"browser.cache.disk.smart_size.first_run": false,
"browser.cache.disk.smart_size.use_old_max": false,
"browser.cache.disk.smart_size_cached_value": 358400,
"browser.startup.homepage_override.mstone": "26.0",
"browser.startup.homepage_override.buildID": "20131205075310",
"extensions.lastAppVersion": "26.0",
"network.cookie.prefsMigrated": true,
"places.history.expiration.transient_current_max_pages": 73687,
"privacy.sanitize.migrateFx3Prefs": true
"graphics": {
"numTotalWindows": 1,
"numAcceleratedWindows": 1,
"windowLayerManagerType": "Direct3D 10",
"windowLayerManagerRemote": false,
"adapterDescription": "AMD M880G with ATI Mobility Radeon HD 4250 ",
"adapterVendorID": "0x1002",
"adapterDeviceID": "0x9712",
"adapterRAM": "256",
"adapterDrivers": "atiu9p64 atiuxp64 atiu9pag atiuxpag atiumdva atiumd6a atitmm64",
"driverVersion": "8.770.2.1000",
"driverDate": "9-19-2010",
"adapterDescription2": "",
"adapterVendorID2": "",
"adapterDeviceID2": "",
"adapterRAM2": "",
"adapterDrivers2": "",
"driverVersion2": "",
"driverDate2": "",
"isGPU2Active": false,
"direct2DEnabled": true,
"directWriteEnabled": true,
"directWriteVersion": "6.1.7601.17514",
"webglRenderer": "Google Inc. -- ANGLE (AMD M880G with ATI Mobility Radeon HD 4250 Direct3D9Ex vs_3_0 ps_3_0)",
"info": {
"AzureCanvasBackend": "direct2d",
"AzureSkiaAccelerated": 0,
"AzureFallbackCanvasBackend": "cairo",
"AzureContentBackend": "direct2d"
"javaScript": {
"incrementalGCEnabled": true
"accessibility": {
"isActive": false,
"forceDisabled": 0
"libraryVersions": {
"NSPR": {
"minVersion": "4.10.2",
"version": "4.10.2"
"NSS": {
"minVersion": "3.15.3.1 Basic ECC",
"version": "3.15.3.1 Basic ECC"
"NSSUTIL": {
"minVersion": "3.15.3.1",
"version": "3.15.3.1"
"NSSSSL": {
"minVersion": "3.15.3.1 Basic ECC",
"version": "3.15.3.1 Basic ECC"
"NSSSMIME": {
"minVersion": "3.15.3.1 Basic ECC",
"version": "3.15.3.1 Basic ECC"
"userJS": {
"exists": false
"extensions": [
"name": "AVG Security Toolbar",
"version": "17.2.0.38",
"isActive": false,
"id": "avg@toolbar"
"name": "GreatArcadeHits Add-on",
"version": "1.0.0",
"isActive": false,
"id": "{B21F5E31-B8E8-41CD-B74C-168A71A10E49}"
}

Check the connection settings.
*Tools > Options > Advanced > Network : Connection > Settings
*https://support.mozilla.org/kb/Options+window+-+Advanced+panel
If you do not need to use a proxy to connect to internet then try to select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.
See "Firefox connection settings":
*https://support.mozilla.org/kb/Firefox+cannot+load+websites+but+other+programs+can
*http://kb.mozillazine.org/Error_loading_websites
Do a malware check with some malware scanning programs on the Windows computer. 
Please scan with all programs because each program detects different malware. 
All these programs have free versions.
Make sure that you update each program to get the latest version of their databases before doing a scan.
*Malwarebytes' Anti-Malware: http://www.malwarebytes.org/mbam.php
*AdwCleaner: http://www.bleepingcomputer.com/download/adwcleaner/ http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml
*SuperAntispyware: http://www.superantispyware.com/
*Microsoft Safety Scanner: http://www.microsoft.com/security/scanner/en-us/default.aspx
*Windows Defender: Home Page: http://www.microsoft.com/windows/products/winfamily/defender/default.mspx
*Spybot Search & Destroy: http://www.safer-networking.org/en/index.html
*Kasperky Free Security Scan: http://www.kaspersky.com/security-scan
You can also do a check for a rootkit infection with TDSSKiller.
*Anti-rootkit utility TDSSKiller: http://support.kaspersky.com/5350?el=88446
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

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?

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

How can I get Firefox to load pages properly and stop asking me to add every single page I visit as a "security exception"?

I just downloaded the newest version of Firefox today because it is required for some of the websites I need for my college courses. However, every single website I go to (even the Mozilla site, Google, etc.) says that there's an "untrusted connection." On some sites I have an option between "Get me out of here!" or to add this particular site as a security exception. As you can probably imagine, this is very time consuming and frustrating. I have uninstalled the program (clean uninstall) and reinstalled it. I have reset Firefox, and nothing helps. The problem persists in Safe Mode as well. Along with this issue, every website I manage to get access to is all kinds of messed up. Modules are missing, or the whole page is blank. It can sit there for an hour and nothing loads. I have a good internet connection and fast processor. I was using Chrome before, and Internet Explorer with no issue. About two years ago I used Mozilla Firefox on this same computer and had no issues. I have a 64-bit system, which is the only issue I can think might be causing this problem. I have gone through and tried changing just about every setting, and nothing has helped. I am at my wit's end because I have homework to do and can't because of this problem.

Glad it is fixed. Thanks for posting back, (even if we are not sure exactly what happened).

Problems with receiving error message "This Connection is Untrusted" for any https sites. On version 17.0.1 of firefox. IE does not get error.

whenever I go to an https site, I get this error message. My other browsers are not having the same issue. I deleted cert8.db as one site suggested. Stopped using firefox due to this issue. example: www.comcast.net, once I sign into email, I get this error message. Amazon.com - same issue. So, these are very common sites. This only started in past two weeks.

Does updating to Firefox 18 (which comes out today) help? It fixed a few issues with certificates.

How do i update my itunes when i keep getting the error "this connection is untrusted"?

Im hoping the update will fix the real issue of not syncing songs i purchased to itunes from my iphone

As there have been no further responses to this thread, I've finally marked Google Chrome as my default browser on both computers.

Getting "This Connection is Untrusted" on certain known sites

I will get this error when accessing the following sites:
1. https://www.statefarm.com
2.https://www.cacert.org
I am using Firefox 22 on Fedora 19 x86_64 with Gnome DE
I have a 2nd system running Fedora 19 and FF 22 with no problems.

Check out why the site is untrusted (click "Technical Details to expand that section) and if this is caused by a missing intermediate certificate 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".
You can also check the certificate in Google Chrome (click icon in the location bar) as that program may be giving a more detailed error report.

"This Connection is Untrusted" without the "I Understand the Risks" option?

I am running Firefox 33.1 on Windows 7 Ultimate. In the recent past I get the "This Connection is Untrusted" message every single time I sign into a hotel or airlines club to get access to the internet. The accompanying "I Understand the Risks" option is not present, just the "Get Me Out of Here." If I did not have Opera and Chrome and IE on my computer as a back-up I would not be able to access the internet other than when I am at home. Please do not suggest clearing cache and cookies. In my 30 + years of computing experience the only time that has helped is with a password issue, when a password seems to get locked in.

does it make a difference when you go into the firefox ''menu ≡ > options > advanced > network > connection - settings...'' and set firefox to directly connect to the internet (that's the 'no proxy' option)?

'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.

"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.

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 keep getting the message: "what should firefox do with this file" in Windows XP every time I want to download a file, e.g., adobe, excel, etc. How can this annoying message be deleted? The check box to "open file automatically" does not work!

I keep getting the message: "what should Firefox do with this file" in Windows XP every time I want to download a file, e.g., adobe, excel, etc. How can this annoying message be deleted? The check box to "open file automatically" does not work!

cor-el,
Thanks for your prompt reply. However, the sources you gave do not seem to apply exactly to my situation. I have attached some screenshots that show what the dialogue box looks like for a pdf download, and what my settings in the Apps panel of Options are. You will note in the first screenshot that I have checked the box to handle this file type automatically; however, the next time I try to download a file of that type, the same dialogue box appears looking exactly like the one shown, so checking the "automatic" option appears to do nothing. The files to be downloaded from my Gmail messages are not generic or altered file types - they are shown as pdf, doc, docx, etc. So while your intent was good, your post did not help. Thanks anyway.

My FireFox Keeps Saying This Connection Is Untrusted

It Happened After I Reset FireFox.

hello, first please make sure that the date & time is 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 & inspect the certificate (see the screenshot attached for instructions):
* which '''issuer information''' does the certificate contain?
thank you!
[["This Connection is Untrusted" error message appears - What to do]]

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]

Firefox Nightly keeps bugging me with "This Connection is Untrusted" on every single site I visit

Similar Messages

Maybe you are looking for