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I CANT GET ON TO TESCO'S AGAIN????

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Hi, IM having trouble getting on to TESCO.COM , i can get on with GOOGLE but with Firefox it keep saying :-

==

Oops... It looks like something is not right

If you are seeing this page it is because your browser has failed some security checks

You may still be able to browse our site to find the feature or store you're looking for. Go to homepage, Contact Us, Site Map.

If you continue having trouble please contact our customer service helpline on: 0800 323 4040

Reference Id: 18.79476768.1594138726.1d58126e

=

THIS keeps on happening at least 6 - 8 a year. ive cleared the cache off Firefox, rebooted it, got a now TESCO site and it is still the same. Yet Google fires up all right all the time. I have got 3 pc of a type and they all can get TESCO without any trouble. Ive been with you for 20yrs and am reluctant to change noW. Tesco just say your better of using Google than Firefox, which isn't much help. Yes they can get me on (sometimes) but they all ways say Google is the one really.

There must be something i can do?

Hi, IM having trouble getting on to TESCO.COM , i can get on with GOOGLE but with Firefox it keep saying :- ============ Oops... It looks like something is not right If you are seeing this page it is because your browser has failed some security checks You may still be able to browse our site to find the feature or store you're looking for. Go to homepage, Contact Us, Site Map. If you continue having trouble please contact our customer service helpline on: 0800 323 4040 Reference Id: 18.79476768.1594138726.1d58126e ============= THIS keeps on happening at least 6 - 8 a year. ive cleared the cache off Firefox, rebooted it, got a now TESCO site and it is still the same. Yet Google fires up all right all the time. I have got 3 pc of a type and they all can get TESCO without any trouble. Ive been with you for 20yrs and am reluctant to change noW. Tesco just say your better of using Google than Firefox, which isn't much help. Yes they can get me on (sometimes) but they all ways say Google is the one really. There must be something i can do?

Chosen solution

That was very good work. Well Done.
Please flag your last post as Solved Problem as this can help others with similar problems.

Also, can you tell us what extension caused the problem?

Read this answer in context 👍 1

All Replies (7)

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Have you contacted TESCO support?


There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connection certificates and send their own.

https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can

https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites

https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message

https://support.mozilla.org/en-US/kb/connection-untrusted-error-message

Websites don't load - troubleshoot and fix error messages

http://kb.mozillazine.org/Error_loading_websites

What do the security warning codes mean

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yes i have time and time again but i thought i should be able to sort it out lol - ill go through them and see if any make sense, thank you.

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good that done it, it was the Extensions at fault, i just removed them 1 at a time , thank you so much. Ive done this time and time again BUT this time i had a mental block about that. thank you.

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Chosen Solution

That was very good work. Well Done.
Please flag your last post as Solved Problem as this can help others with similar problems.

Also, can you tell us what extension caused the problem?

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it was ublockk, just reinstalled it.

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Thank you.

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From another question of mine on the same subject. I found MALWAREBYTES extension was the issue. Disabling, logging in to tesco, and re enabling, permitted me to log out and back in again with no issue. A reboot and log in will see if this solution sticks.