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Authentication failure when trying to open Thunderbird
After many years of using Thunderbird I am now considering ditching it. I am continually getting the Authorisation Failure message when trying to open Thunderbird. Why does this keep happening? It does not happen on my Android devices, just on Windows 11. I have tried deleting all three gmail accounts and re entering them. All is fine until I close down Thunderbird and then open it again. I run Norton 360 and have tried taking off Norton email security, but that didn't work. Any ideas, please?
After many years of using Thunderbird I am now considering ditching it. I am continually getting the Authorisation Failure message when trying to open Thunderbird. Why does this keep happening? It does not happen on my Android devices, just on Windows 11.
I have tried deleting all three gmail accounts and re entering them. All is fine until I close down Thunderbird and then open it again.
I run Norton 360 and have tried taking off Norton email security, but that didn't work.
Any ideas, please?
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I am continually getting the Authorisation Failure message when trying to open Thunderbird.
Please post a screenshot of the error. https://support.mozilla.org/kb/how-do-i-create-screenshot-my-problem