No connection to any sites in Firefox

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  1. Posts : 147
    Windows 7 Professional
       #1

    No connection to any sites in Firefox


    Attached are some Firefox screen shots that I've been receiving for the past two weeks blocking access to any and all websites. I have to access the sites my entering the name in my search engine. As always, thanks for any explanation and help you can give will be greatly appreciated. ellen
    Attached Thumbnails Attached Thumbnails No connection to any sites in Firefox-https-no-access.jpg   No connection to any sites in Firefox-connection-not-secure.jpg   No connection to any sites in Firefox-unable-connect.jpg  
      My Computer


  2. Posts : 3,691
    win 8 32 bit
       #2

    Check your date and time set DNS go 208.67.220.220 & 208.67.222.222
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  3. Posts : 1,102
    OEM Windows 7 Ult (x64) SP1
       #3

    samuria said:
    Check your date and time
    Agree!
    For starters, pleas make sure your system date and time are correct.
    If they are not, fix them and consider replacing your CMOS battery, which may be dying.

    (Also: is this the same computer as the one here and here???)

    MM
      My Computer


  4. Posts : 147
    Windows 7 Professional
    Thread Starter
       #4

    No connection to any sites in Firefox


    I don't now what a CMOS battery is. I have a desktop and does not use any batteries.
    Yes, it's the same computer but different issues.
    I have a feeling I need to do a clean Windows install.
    Thanks for taking the time to reply. ellenc
      My Computer


  5. Posts : 147
    Windows 7 Professional
    Thread Starter
       #5

    No connection to any sites in Firefox


    I have no idea what this is: Check your date and time set DNS go 208.67.220.220 & 208.67.222.222
    The Windows date and time clock is accurate. I appreciate your replying. ellenc
      My Computer


  6. Posts : 20,583
    Win-7-Pro64bit 7-H-Prem-64bit
       #6

    CMOS battery is a mother board battery about the size of a nickel
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  7. Posts : 1,102
    OEM Windows 7 Ult (x64) SP1
       #7

    Hi:

    EDIT: Thanks, @ThrashZone -- you beat me to it, while I was typing.

    Actually, even desktop computers have a little battery inside the case on the motherboard.

    CMOS battery

    When it starts to die, the computer's time/date will drift.
    That can be one cause of the error you report.
    It happened to another user recently HERE.
    When the user replaced the battery, the browser error went away.
    One hint that the CMOS battery needs to be replaced would be that system time drifts off again, after you fix it.

    As for changing your DNS servers, the other suggestion @samuria made, I'm not sure that will fix your issue. I will defer to @samuria to walk you through that.

    Until then, I suggest perhaps trying the steps suggested here:

    https://support.mozilla.org/en-US/kb...UNKNOWN_ISSUER

    If that does not work, we may need to collect additional basic system diagnostic information, in order to better assist you.

    Thanks,
    MM
    Last edited by MoxieMomma; 17 Aug 2016 at 13:15. Reason: typos
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  8. Posts : 378
    Windows 10 Pro x64 (UPGRADED - 10/20/2016)
       #8

    I'd personally use Google's DNS instead of OpenDNS. Some people have reported odd redirects with OpenDNS.
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  9. Posts : 1,102
    OEM Windows 7 Ult (x64) SP1
       #9

    IoNGeNeRaL said:
    I'd personally use Google's DNS instead of OpenDNS. Some people have reported odd redirects with OpenDNS.
    Agree -- Google DNS is probably a better choice.

    But I wonder if perhaps there isn't something else going on with the OP's system.

    Might be worth a bit more investigation, or at least the troubleshooting suggested in the Mozilla support link I just posted.

    Cheers,
    MM
      My Computer


  10. Posts : 4,776
    Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
       #10

    Question: What is your Antivirus? Some are known to use their own certificates for SSL scanning and could possibly cause that error.

    Second question: Your screenshot

    No connection to any sites in Firefox-no-connection-any-sites-firefox.jpg

    shows a secure connection to sevenforums (https) but sevenforums only uses http. So obviously the connection won't work.

    Suggest: Launch Firefox and type about:support in the address bar then press [B]Enter[B]

    In the window that opens choose "Copy text to clipboard" and paste the results here.
      My Computer


 
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