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Thunderbird opens malware/yahoo window in Thunderbird when checking mail

  • 3 replies
  • 1 has this problem
  • 8 views
  • Last reply by hyperrog

hyperrog
hyperrog
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Recently, when checking yahoo mail (pop.mail.yahoo.com), Thunderbird 91.12.0 (64-bit) on Mac OS X 10.13.6 has started opening a web-content window in Thunderbird for what appears to be malware. The window url has, for example, casalemedia.com, yimg.com, or others. Strangely, perhaps, one time it was tag.idsync.analytics.yahoo.com.

Is this malware, or is yahoo somehow triggering this when mail is checked? How is that even possible?

How can I stop this from happening?

Recently, when checking yahoo mail (pop.mail.yahoo.com), Thunderbird 91.12.0 (64-bit) on Mac OS X 10.13.6 has started opening a web-content window in Thunderbird for what appears to be malware. The window url has, for example, casalemedia.com, yimg.com, or others. Strangely, perhaps, one time it was tag.idsync.analytics.yahoo.com. Is this malware, or is yahoo somehow triggering this when mail is checked? How is that even possible? How can I stop this from happening?
Attached screenshots

All Replies (3)

Matt
Matt
  • Moderator
  • Top 10 Contributor
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Your "malware" is Yahoo asking for you to authorize Thunderbird to get mail on your behalf. I suggest you log in using the page and allow the authentication to actually complete.

Carl
Carl
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That did work for me. It does give me the creeps, though.

hyperrog
hyperrog Question owner
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I added the app-specific password in Yahoo, and it fixed the problem, but it's worrying to me that Thunderbird is opening the browser window (not Chrome) and that Yahoo was offering casalemedia.com which seems to be known malware.