This can be due to your Thunderbird profile, but you can fix that by deleting parent.lock file. Thunderbird not responding – Many users reported that Thunderbird isn’t responding at all.Speaking of Thunderbird, here are some similar issues reported by users: What can I do if Mozilla Thunderbird won’t open in Windows?Īlthough a solid email client, many users reported that Thunderbird won’t open on their PC. For this purpose, we prepared a simple but useful workaround that should help you resolve it. One is critical and it’s related to sudden crashes after startup. However, even though this email client is frequently updated and well-coded, users are experiencing a number of issues with the software. And the best part? It’s an open-source project. Mozilla Thunderbird is one of the most trusted email clients on the market available on various platforms used not only as an email client but also as an RSS feed and much more.

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