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I attempted to register for Firefox Sync but I keep getting "blocked for security reasons". Why?

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I attempted to register for "Firefox Sync"; but, with every attempt I keep getting the message "the request was blocked for security reasons". What does this mean? What "security reasons"?

I attempted to register for "Firefox Sync"; but, with every attempt I keep getting the message "the request was blocked for security reasons". What does this mean? What "security reasons"?

Additional System Details

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0

More Information

Shadow110 1072 solutions 14836 answers

Hi, possible security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connections and send their own certificate.

What was the full error message ?

Also before get in to Sync, it is for Syncing (plural) devices and is not meant as a backup service and if use as such will eventually loose your info/data.

Please let us know if this solved your issue or if need further assistance.

Hi, possible security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connections and send their own certificate. What was the full error message ? *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 *http://kb.mozillazine.org/Error_loading_websites Also before get in to Sync, it is for Syncing (plural) devices and is not meant as a backup service and if use as such will eventually loose your info/data. Please let us know if this solved your issue or if need further assistance.