Mozilla CA Store doesn't have AdGuard Certificate

[MichaelDavidGK]

AdGuard version

7.15.0

Browser version

Firefox Dev 117.0b9

OS version

Win 11 22H2

What filters do you have enabled?

AdGuard Base filter, AdGuard Tracking Protection filter, AdGuard Annoyances filter

What Stealth Mode options do you have enabled?

No response

Support ticket ID

No response

Issue Details

Firefox informing or preventing accessing sites due to safety issues.

It happens even when HTTPS Certificate is installed on Windows.

Most likely it is being raised due to that Mozilla CA Store doesn't have AdGuard Certificate for HTTPS filtering as indicated in error message.

While for some sites user can bypass it (imgur), for some they cannot (google).

Screenshots are attached.

Expected Behavior

Firefox allowing to open sites without issues

Screenshots

Additional Information

No response

[MichaelDavidGK]

I forgot to mention that it is possible to install certificate manually into Firefox
You would need to go to Settings => Privacy & Security => Scorll around 80% to Certificates => press on View Certificates => In Authorities tab (which is default) press on Import

[Aydinv13]

@MichaelDavidGK Hi there!

1. Have you tried to reinstall AdGuard's certificate (Settings -> Network -> Reinstall Certificate)?
2. Which version of AdGuard are you using now? I Have no issues with v7.14 and v7.15 nightly 4.
3. Could you reinstall AdGuard.

[MichaelDavidGK]

@Aydinv13

hi (●’◡’●)ﾉ

1. yes, I did try to reinstall
2. I tried latest stable and beta, happens with both
   as filled in I'm on Developer build 117.0b9
3. I will try when I get back home and let you know
   I will also check with nightly and stable Firefox when I get back

I also said above in a comment that you can install the cert manually

[Aydinv13]

I'm on Developer build 117.0b9

I tried this version of Firefox as well.

I will try when I get back home and let you know
I will also check with nightly and stable Firefox when I get back

Ok thank you.

[Aydinv13]

@MichaelDavidGK any update?

[MichaelDavidGK]

@MichaelDavidGK any update?

hi, sorry for late update.
Didn't expect to get this busy and forget..

Anyway after reinstall of AdGuard (stable 7.14, haven't checked beta):

Happens on stable firefox 116.0.3 as well

I also noticed that AdGuard doesn't set proxy automatically upon install/reinstall of certificate, unlike it is specified in manual installation.
Upon manually setting proxy in system settings it works as well as if cert was added in firefox settings.

Could that be an issue?

[Aydinv13]

@MichaelDavidGK ,
could you try the following:

1. Go to cmd and enter Certmgr.msc
2. Navigate to Trusted Root Certification Authorities -> Certificates
3. Remove AdGuard's certificate
4. Reinstall the certificate via AdGuard's settings -> Network

[MichaelDavidGK]

Works after reinstalling cert manually and restarting browser.

Seems it was Windows issue (on fresh install of latest ISO, no less...)

Feel free to close it I guess

[Aydinv13]

We're glad to hear your issue was gone. Thanks for a feedback, I'm closing this task.