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I keep getting message "Thunderbird is already running but not reponding"

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  • Slědne wótegrono wót Wayne Mery

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I keep getting the above message. I looked up online and there are free apps to fix same but I am worried some of these apps may compromise my computer. Can you recommend a free app that is safe please? Thank you.

I keep getting the above message. I looked up online and there are free apps to fix same but I am worried some of these apps may compromise my computer. Can you recommend a free app that is safe please? Thank you.

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Most of those free apps are not a great idea.

https://wiki.mozilla.org/Thunderbird:Testing:Antivirus_Related_Performance_Issues may help you figure out what is wrong.