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Error message when I try tesco.com site since Auto Upgrade by Microsoft Windows 10 upgrade

  • 4 replies
  • 1 has this problem
  • 1 view
  • Last reply by cooljazzer

cooljazzer
cooljazzer
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I cannot access my Tesco.com account any longer as Firefox blocks the site. This has happened since an automatic upgrade by Microsoft Windows 10 two days ago. I have only been using Firefox for a short time but have found it excellent until this disruption happened. I can access the Tesco.com site via all other browsers I have tried but not Firefox. Can this be fixed by Mozilla or can I fix it? An early reply to this would be appreciated. 

Thank you

Regards

Andrew

I cannot access my Tesco.com account any longer as Firefox blocks the site. This has happened since an automatic upgrade by Microsoft Windows 10 two days ago. I have only been using Firefox for a short time but have found it excellent until this disruption happened. I can access the Tesco.com site via all other browsers I have tried but not Firefox. Can this be fixed by Mozilla or can I fix it? An early reply to this would be appreciated. Thank you Regards Andrew

All Replies (4)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
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Hi Andrew, what does Firefox display when you try to access the Tesco site?

Note: I was testing with http://www.tesco.com/. If you see a different address in the address bar that Firefox is not loading, could you post that address?

cooljazzer
cooljazzer Question owner
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I am having problems entering sites (even Firefox) that are secure. I get an error message (see attached) the site address is www.tesco.com/groceries.

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
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I can't tell what's causing that just from the photo. To investigate further, could you try this:

In a new tab, type or paste the following internal address into the address bar and press Enter: 

chrome://pippki/content/exceptionDialog.xul

In the Location space, change the address to https://secure.tesco.com/ and click the Get Certificate button. If the View button becomes enabled, click View and compare the certificate with the attached screenshot. Anything unusual about the issuer or the dates?

cooljazzer
cooljazzer Question owner
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There was a problem with AVG Ultimate software I have removed it and installed McAfee All is well now thanks all for your help