Firefox not working - Secure Connection Failed
Secure Connection Failed An error occurred during a connection to (Firefox and ALL sites) PR_CONNECT_RESET_ERROR Error code: PR_CONNECT_RESET_ERROR Help advises 'Failed to check for updates' Problem arose on upgrade to Firefox 138 Tried restart, computer reboot and reinstallation
I am not sufficiently computer literate to understand supposed help and support documents within 'Mozilla Support'
It looks like the end of 20 years of using Firefox ... Google Chrome used to submit this request
Выбранное решение
See if one of the below helps. I had this issue years ago with Kaspersky. https://support.mozilla.org/en-US/questions/1401291#answer-1557674 https://support.mozilla.org/en-US/questions/1444114
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What OS? If windows, home or pro? If windows, are you running any security software besides MS Defender?
Jon Thanks Running Windows 10 Home Not using Windows Defender but run Kaspersky IS I confirm Firefox is not working even if KIS temporarily disabled
Выбранное решение
See if one of the below helps. I had this issue years ago with Kaspersky. https://support.mozilla.org/en-US/questions/1401291#answer-1557674 https://support.mozilla.org/en-US/questions/1444114
Jon Thanks for your advice. The first solution (answer-1557674) worked :)