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Sites that are loading in Chrome and Safari give error messages in Firefox 61.01

  • 3 replies
  • 1 has this problem
  • 11 views
  • Last reply by Shadow110

Jalax_lateur
Jalax_lateur
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I am running Firefox 61.01 on a Mac OSX 10.9.5. I am getting error messages and insecure site messages for outlook, You Tube, my banks, PayPal, Amazon... sites that are displaying fine on Google and Safari.

On my website, moreover, my Pay Pal buttons have disappeared in Firefox 61.01. 

I have no problem accessing these site using Firefox 48 on my Macs running 10.6.8...

Firefox 61.01 has been very disappointing to say the least.

I am running Firefox 61.01 on a Mac OSX 10.9.5. I am getting error messages and insecure site messages for outlook, You Tube, my banks, PayPal, Amazon... sites that are displaying fine on Google and Safari. On my website, moreover, my Pay Pal buttons have disappeared in Firefox 61.01. I have no problem accessing these site using Firefox 48 on my Macs running 10.6.8... Firefox 61.01 has been very disappointing to say the least.

All Replies (3)

Shadow110
Shadow110
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What Security Software are you running please ? What Extensions are you running ?

Jalax_lateur
Jalax_lateur Question owner
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Hi Pk,


I'm running Malware Bytes for Mac and Kaspersky Internet Security. I've gone back to default settings on Firefox 61.0, so no extensions.

Shadow110
Shadow110
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There is security software like Avast/AVG, Kaspersky, BitDefender and ESET that intercept secure connections and send their own certificate. it is a kaspersky issue as per this forum thread :

But since it is after a update from them you may want to ask your question there.

https://support.mozilla.org/en-US/kb/error-codes-secure-websites#w_antivirus-products Please see Kaspersky here.