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Annoying Caslemedia popup when using Thunderbird

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Can anyone help me delete the popup of Caslemedia when using Thunderbird. It started a couple days ago. My yahoo mail account seems to be blocked. The popup seems to use a lot of computer resources. I have tried three different anti virus software detection/removal without any luck.

Thanks, Steve

Can anyone help me delete the popup of Caslemedia when using Thunderbird. It started a couple days ago. My yahoo mail account seems to be blocked. The popup seems to use a lot of computer resources. I have tried three different anti virus software detection/removal without any luck. Thanks, Steve

All Replies (1)

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It might be related to the OAuth2 authentication token for a Yahoo mail account. See if resetting the token stops the popup:

https://www.reddit.com/r/Thunderbird/comments/wlqa9s/comment/isxm5yf/?utm_source=reddit&utm_medium=web2x&context=3