hello Stephanie331, 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), could you tell us on which operating system you're running firefox and what kind of security software you are using?

"This Connection is Untrusted" error message appears - What to do

Hi - I have a very similar problem. I had to remove some malware, and ended up reinstalling Firefox. Now, no matter the search (Google, Yahoo, Facebook for example) I am getting an error, This Connection is Untrusted for what I consider to be basic websites and searches, and really don't want to be investigating 'certificates' for every search I do as has been recommended in some previous posts. I've used Firefox for quite some time and have never seen this issue before. I am very reluctant to check I Understand the Risks. Any suggestions? I'm using Windows 7. Thanks

I can't even get into Mozilla login or some support sites through Firefox and I prefer it over IE. Everything is untrusted. Any help? I hope I have provided what you need here. Application Basics

Name: Firefox Version: 26.0 User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0

Extensions

Name: 20-20 3D Viewer - WEB Version: 5.0.94.0 Enabled: false ID: 2020Player_WEB@2020Technologies.com

Name: HP Smart Web Printing Version: 4.60 Enabled: false ID: smartwebprinting@hp.com

Name: RealDownloader Version: 1.3.3 Enabled: false ID: {DF153AFF-6948-45d7-AC98-4FC4AF8A08E2}

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: 20131205075310 browser.startup.homepage: https://www.google.com/ browser.startup.homepage_override.buildID: 20131205075310 browser.startup.homepage_override.mstone: 26.0 dom.mozApps.used: true extensions.lastAppVersion: 26.0 gfx.direct3d.last_used_feature_level_idx: 0 network.cookie.prefsMigrated: true places.database.lastMaintenance: 1389347326 places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true print.printer_HP_Deskjet_F4500_series.print_bgcolor: false print.printer_HP_Deskjet_F4500_series.print_bgimages: false print.printer_HP_Deskjet_F4500_series.print_colorspace: print.printer_HP_Deskjet_F4500_series.print_command: print.printer_HP_Deskjet_F4500_series.print_downloadfonts: false print.printer_HP_Deskjet_F4500_series.print_duplex: 1852337994 print.printer_HP_Deskjet_F4500_series.print_edge_bottom: 0 print.printer_HP_Deskjet_F4500_series.print_edge_left: 0 print.printer_HP_Deskjet_F4500_series.print_edge_right: 0 print.printer_HP_Deskjet_F4500_series.print_edge_top: 0 print.printer_HP_Deskjet_F4500_series.print_evenpages: true print.printer_HP_Deskjet_F4500_series.print_footercenter: print.printer_HP_Deskjet_F4500_series.print_footerleft: &PT print.printer_HP_Deskjet_F4500_series.print_footerright: &D print.printer_HP_Deskjet_F4500_series.print_headercenter: print.printer_HP_Deskjet_F4500_series.print_headerleft: &T print.printer_HP_Deskjet_F4500_series.print_headerright: &U print.printer_HP_Deskjet_F4500_series.print_in_color: true print.printer_HP_Deskjet_F4500_series.print_margin_bottom: 0.5 print.printer_HP_Deskjet_F4500_series.print_margin_left: 0.5 print.printer_HP_Deskjet_F4500_series.print_margin_right: 0.5 print.printer_HP_Deskjet_F4500_series.print_margin_top: 0.5 print.printer_HP_Deskjet_F4500_series.print_oddpages: true print.printer_HP_Deskjet_F4500_series.print_orientation: 0 print.printer_HP_Deskjet_F4500_series.print_page_delay: 50 print.printer_HP_Deskjet_F4500_series.print_paper_data: 304 print.printer_HP_Deskjet_F4500_series.print_paper_height: 11.00 print.printer_HP_Deskjet_F4500_series.print_paper_name: print.printer_HP_Deskjet_F4500_series.print_paper_size_type: 0 print.printer_HP_Deskjet_F4500_series.print_paper_size_unit: 0 print.printer_HP_Deskjet_F4500_series.print_paper_width: 8.50 print.printer_HP_Deskjet_F4500_series.print_plex_name: print.printer_HP_Deskjet_F4500_series.print_resolution: 539455081 print.printer_HP_Deskjet_F4500_series.print_resolution_name: print.printer_HP_Deskjet_F4500_series.print_reversed: false print.printer_HP_Deskjet_F4500_series.print_scaling: 1.00 print.printer_HP_Deskjet_F4500_series.print_shrink_to_fit: true print.printer_HP_Deskjet_F4500_series.print_to_file: false print.printer_HP_Deskjet_F4500_series.print_unwriteable_margin_bottom: 0 print.printer_HP_Deskjet_F4500_series.print_unwriteable_margin_left: 0 print.printer_HP_Deskjet_F4500_series.print_unwriteable_margin_right: 0 print.printer_HP_Deskjet_F4500_series.print_unwriteable_margin_top: 0 privacy.donottrackheader.enabled: true privacy.sanitize.migrateFx3Prefs: true storage.vacuum.last.index: 1 storage.vacuum.last.places.sqlite: 1388865299

Graphics

Adapter Description: Intel(R) HD Graphics Adapter Drivers: igdumd64 igd10umd64 igd10umd64 igdumd32 igd10umd32 igd10umd32 Adapter RAM: Unknown Device ID: 0x0152 DirectWrite Enabled: false (6.2.9200.16571) Driver Date: 12-12-2012 Driver Version: 9.17.10.2932 GPU #2 Active: false GPU Accelerated Windows: 0/1 Basic Vendor ID: 0x8086 WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote: false AzureCanvasBackend: skia AzureContentBackend: none 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: 3.15.3.1 Basic ECC Version in use: 3.15.3.1 Basic ECC

NSSSMIME Expected minimum version: 3.15.3.1 Basic ECC Version in use: 3.15.3.1 Basic ECC

NSSSSL Expected minimum version: 3.15.3.1 Basic ECC Version in use: 3.15.3.1 Basic ECC

NSSUTIL Expected minimum version: 3.15.3.1 Version in use: 3.15.3.1

And now I'm getting an unresponsive script message...that is IF I get to the site.

Hi Ink

Which security software (firewall, anti-virus) do you have?

It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See:

• https://support.mozilla.org/kb/Server+not+found
• https://support.mozilla.org/kb/Firewalls

• https://support.mozilla.org/kb/fix-problems-connecting-websites-after-updating