Just upgraded to FF 42 X64, now I can not access https sites

[jnelsoninjax]

When I attempt to access sites such as YouTube. I get this:

What can I do to get around this issue?

[Som]

check if your date and time are set correctly

[jnelsoninjax]

Date and time are automatically set and they are correct

[Circaflex]

are you running adguard by chance?

I did a quick google for your username, it seems you have adguard. I have had this issue before, here is what you need to do:

First, I would uninstall the current version of adguard you have installed.

Next, download this version from their website (they have fixed some of these issues that make this error happen) https://github.com/AdguardTeam/AdguardForWindows/releases, download the .487 beta

Now, make sure you restart the PC after uninstalling adguard. Once back up, make sure you DO NOT OPEN FIREFOX. Install adguard. Once it is finished, try going to a https website. if you still get an error, go into adguard settings, under general at the very bottom there is an option to reinstall the certificate, do that and test again. Best option is uninstalling and reinstalling adguard though, chances are adguard was running when you upgraded firefox and it corrupts the certificate.

[jnelsoninjax]

Actually no, I am not running adguard on the PC, I am running it on my Android. I am using uBlock Origin on the PC

[Circaflex]

The file cert8.db in your profile folder may have become corrupted. Delete this file while Firefox is closed.

1. Open your profile folder:

   Click the menu button , click help and select Troubleshooting Information. The Troubleshooting Information tab will open.

2. Under the Application Basics section, click on Show Folder. A window with your profile files will open.

3. Click the menu button and then click Exit .

4. Click on the file named cert8.db.
5. Press Delete.
6. Restart Firefox.

This should fix it.

[jnelsoninjax]

Already tried that. still does the same thing.

[Circaflex]

Have you tried backing up your book marks, uninstalling firefox and reinstalling? What AV do you use?

[jnelsoninjax]

I am about ready to uninstall! I should mention: I did not 'upgrade' per se, I was using Cyberfox and now I installed FF X64 and copied my profile over. I am using Kaspesky Total Security 16

[Circaflex]

More than likely something within the profile has become corrupted. I would backup what you can from cyberfox or firefox, uninstall both. Delete any left over folders they had and reinstall.

[Torolol]

I am about ready to uninstall! I should mention: I did not 'upgrade' per se, I was using Cyberfox and now I installed FF X64 and copied my profile over. I am using Kaspesky Total Security 16

is FF without copied-profile from Cyberfox works?

[jnelsoninjax]

is FF without copied-profile from Cyberfox works?

No, I just made a new blank profile, and it still will not work.

[jnelsoninjax]

OK, I just did a fresh install, I used IOBit uninstaller to completely remove it, re-installed, and it still does the same thing, even before recovering my profile.

[Circaflex]

do any other browsers work? ie/edge?

[Night Prowler]

Same thing here. Other browsers work fine...

[Circaflex]

That is very strange. I know this might be a hassle, but it would be a great troubleshooting step. Create a temporary local account for windows and test FF within the new profile and see if it works.

[+devHead Subscriber²]

I've always had this issue with older Firefox builds at work, but never at home. But the same thing - nearly every site I got the page saying it was untrusted.  I finally gave up and use Chrome at work now.  But at home, Firefox works fine. But if this is happening with the x64 build, I'll probably avoid it for now.

[Circaflex]

Have you ever had family settings turned on?

[jnelsoninjax]

do any other browsers work? ie/edge?

Yes, as I stated Cyberfox works as does Edge

Have you ever had family settings turned on?

No.

[Obi-Wan Kenobi]

Same thing happening here, fresh FFx64 install (Fresh, as in it's never even been installed on this machine until now).....all other browsers work just fine....so....hmm......(thought I'd retry firefox after several years, but this is leaving a bad taste in my mouth.....)

[jnelsoninjax]

The million dollar question is " Is it Firefox? or Windows, etc." It is very strange that my roommate just installed FF 42 X64 and it (ssl, youtube, etc.) works just fine for him.

[Obi-Wan Kenobi]

Hmm....this is strange. I do use adguard (please don't come down hard on me, fellas), but I've tried everything mentioned here, and that didn't work either. Oh well, I'm sure it'll get sorted out soon. (Error code: sec_error_unknown_issuer is what I'm seeing just by trying to visit youtube in FF. So it has to be some security cert issue or something, IDK)

[Circaflex]

i have also been running it, for a while, without this issue. the only time I did, was because of adguard

[Torolol]

Youtube use "GeoTrust Global CA" as the CA issuer,
that CA issuer should be shown in the built-in CA list.

Just checking, are you able to see the built-in CA list on FF?
Option | Certificates | View Certificates | Authorities

[Obi-Wan Kenobi]

I see the certs, and GeoTrust GlobalCA is listed....so IDK, I'm going to disable adguard and try again. 

 

EDIT: Yep, disabled adguard, worked flawlessly. Guess I'll go file a report.....