This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

I keep getting "This Connection is Untrusted" but my time is correct. I use the Windows Firewall.

  • 7 replies
  • 1 has this problem
  • 11 views
  • Last reply by philipp

more options

I have tried everything. I have run Microsoft Safety Scanner and it shows 0 harmful files or anything that should be preventing this. The problem seems to have started when I purchased a new router. Would this have any influence on it? I went back to an older firefox to see if that would help, but it did not. Here is the troubleshooting info.

I have tried everything. I have run Microsoft Safety Scanner and it shows 0 harmful files or anything that should be preventing this. The problem seems to have started when I purchased a new router. Would this have any influence on it? I went back to an older firefox to see if that would help, but it did not. Here is the troubleshooting info.

All Replies (7)

more options

Application Basics


Name: Firefox Version: 25.0.1 User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0

Extensions


Name: AVG SafeGuard toolbar Version: 17.3.1.91 Enabled: false ID: avg@toolbar

Name: Dragon NaturallySpeaking Rich Internet Application Support Version: 1.0.0.9 Enabled: false ID: jid0-lmZNVK7a82O8cufhdfB9dUDfA2w@jetpack

Important Modified Preferences


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.places.smartBookmarksVersion: 4 browser.sessionstore.upgradeBackup.latestBuildID: 20131112160018 browser.startup.homepage_override.buildID: 20131112160018 browser.startup.homepage_override.mstone: 25.0.1 extensions.lastAppVersion: 25.0.1 gfx.direct3d.last_used_feature_level_idx: 0 network.cookie.prefsMigrated: true places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf privacy.sanitize.migrateFx3Prefs: true

Graphics


Adapter Description: AMD Radeon HD 7800 Series Adapter Drivers: aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64 Adapter RAM: 2048 Device ID: 0x6819 Direct2D Enabled: true DirectWrite Enabled: true (6.2.9200.16571) Driver Date: 10-8-2013 Driver Version: 13.152.1.8000 GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 10 Vendor ID: 0x1002 WebGL Renderer: Google Inc. -- ANGLE (AMD Radeon HD 7800 Series Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote: false AzureCanvasBackend: direct2d AzureContentBackend: direct2d AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

JavaScript


Incremental GC: true

Accessibility


Activated: false Prevent Accessibility: 0

Library Versions


NSPR Expected minimum version: 4.10.2 Version in use: 4.10.2

NSS Expected minimum version: 3.15.3 Basic ECC Version in use: 3.15.3 Basic ECC

NSSSMIME Expected minimum version: 3.15.3 Basic ECC Version in use: 3.15.3 Basic ECC

NSSSSL Expected minimum version: 3.15.3 Basic ECC Version in use: 3.15.3 Basic ECC

NSSUTIL Expected minimum version: 3.15.3 Version in use: 3.15.3

more options

hello jaymartin13, 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

more options

(Error code: sec_error_unknown_issuer)

Issued By Common Name (CN) Sendori, Inc Organization (O) Sendori, Inc Organizational Unit (OU) <Not Part Of Certificate>

more options

sendori is a useless program on your computer that intercepts your network traffic, most of the time it gets installed unintentionally (like bundled with other software downloads). please remove it from the windows control panel.

in addition i'd recommend running a full scan of your system with different security tools like the free version of malwarebytes & adwcleaner.

more options

I am unable to find Sendori in Control Panel. Any idea how to rmeove it without having to wipe my entire PC. I am running Malwarebytes right now. I will update ASAP.

more options

For the most part, MalwareBytes seems to have solved my problem. Thank you so much for your help. Hopefully, this issue is resolved.

more options

you're very welcome - if there are still any hiccups left you need help with, feel free to come back any time...