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TLS 1.0, 1.1 exceptions for private (home) network

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  • Last reply by data0042

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How do I create a TLS 1.0, 1.1 exception in Firefox 100.0+ for my legacy devices (NAS), that no longer get firmware updates from the manufacture, that are on my private network and thier configuration is done through a web browser?

 I have been using Firefox browser for a long time, since it was called Mozilla browser.  An answer such as "I'm out of luck." means I will have to look for a new browser.  I prefer not to do that.  I trust the Mozilla brand and like you products and recommend them to my friends and customers.
How do I create a TLS 1.0, 1.1 exception in Firefox 100.0+ for my legacy devices (NAS), that no longer get firmware updates from the manufacture, that are on my private network and thier configuration is done through a web browser? I have been using Firefox browser for a long time, since it was called Mozilla browser. An answer such as "I'm out of luck." means I will have to look for a new browser. I prefer not to do that. I trust the Mozilla brand and like you products and recommend them to my friends and customers.

Chosen solution

TLS 1.0 and TLS 1.1 have been deprecated since Firefox 78 Release and should not be used now days.

Firefox may support these protocols (when you absolutely need it) via security.tls.version.enable-deprecated = true in about:config . This should only be enabled temporarily to access your NAS.

https://blog.mozilla.org/security/2018/10/15/removing-old-versions-of-tls/ https://hacks.mozilla.org/2020/02/its-the-boot-for-tls-1-0-and-tls-1-1/

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Chosen Solution

TLS 1.0 and TLS 1.1 have been deprecated since Firefox 78 Release and should not be used now days.

Firefox may support these protocols (when you absolutely need it) via security.tls.version.enable-deprecated = true in about:config . This should only be enabled temporarily to access your NAS.

https://blog.mozilla.org/security/2018/10/15/removing-old-versions-of-tls/ https://hacks.mozilla.org/2020/02/its-the-boot-for-tls-1-0-and-tls-1-1/

Modified by James

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data0042 said

I have been using Firefox browser for a long time, since it was called Mozilla browser. An answer such as "I'm out of luck." means I will have to look for a new browser. I prefer not to do that. I trust the Mozilla brand and like you products and recommend them to my friends and customers.

The web browser we know as Firefox started out as Phoenix during the 0.1 to 0.5 Releases. Then for 0.6-0.7 Releases it was Firebird. It has been called Firefox since the 0.8 Release as Firefox was not first released at version 1.0 as many places lead you to believe. Perhaps you are thinking of the old Mozilla suite which was continued by the community as SeaMonkey after Mozilla discontinued their suite. Phoenix bios had name first and Firebird SQL got name shortly before so it was renamed to avoid confusion.

Other web browsers (ex: Chrome, Edge, and Safari) have depreciated support for TLS 1.0/1.1 also as mentioned in bottom of fist link posted.

Modified by James

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James replied: Firefox may support these protocols (when you absolutely need it) via security.tls.version.enable-deprecated = true in about:config . This should only be enabled temporarily to access your NAS.


This works! Thank you. I plan on using it only on the system that I use to manage my network behind my firewall.

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