Cannot get any search engines to work in ff
This comes up every time I do a search:
This Connection is Untrusted
You have asked Firefox to connect securely to www.google.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 verified.
Wšykne wótegrona (2)
Are you having problems with the search engines, or the connection?
Delete the search.json file and possible search-metadata.json and search.sqlite files in the Firefox profile folder to reset the search engines to the default.
Type about:support in the address bar and press enter.
Under the page logo on the left side you will see Application Basics. Under this find Profile Folder. To it’s right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.
Locate the search files. Then rename or delete them. Restart Firefox.
http://www.ehow.com/how_11385212_troubleshoot-reset-connection-firefox.html
https://support.mozilla.org/en-US/kb/server-not-found-connection-problem
https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can
https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message
https://support.mozilla.org/en-US/kb/connection-untrusted-error-message
http://kb.mozillazine.org/Error_loading_websites
This Connection is Untrusted is sometimes caused because the computer system clock is wrong. Check the time / date / time zone settings.
It appears you use Kaspersky. A common reason for this problem would that Firefox is not set up to work with filtering of secure connections. In that process, Kaspersky needs to present fake site certificates to Firefox in order to intercept and decrypt the transmission. Normally Kaspersky's installer takes care of this automatically, but in some cases, manual intervention might be required.
Unfortunately, this problem can also be caused by malware, but let's try Kaspersky first.
I found these steps in a post on the Kaspersky forums and you will see that it refers to an older version of the program so the actual path on disk probably has changed a bit:
Open Firefox's Certificate Manager:
"3-bar" menu button (or Tools menu) > Options > Advanced > Certificates mini-tab > View Certificates button
In the Certificate Manager dialog, click the "Authorities" mini-tab (not the Servers mini-tab)
If you see an existing "Kaspersky Anti-Virus Personal Root Certificate"
Select it and Click "Delete or Distrust"
Now click "Import..."
Proceed to "C:\ProgramData\Kaspersky Lab\AVP15.0.1\Data\Cert\" Note: The bolded part may be different for your product.
Select "(fake)Kaspersky Anti-Virus Personal Root Certificate.cer" and Open!
Does that work on your Firefox?