#Mozilla thunderbird not responding software#
#Mozilla thunderbird not responding mac#
First StepsĪ quick test of the impact of antivirus software (AV) is starting Windows in safe mode, or starting Mac in safe mode. In short, if TB performance is good when AV software has been disabled, doesn't make this fundamentally a bug in Thunderbird, although there are certainly areas of Thunderbird performance that can be improved. AV vendors don't always play nice, and don't always adapt their software to new versions of other software on your computer, whether you know it or not they do make accommodations under the hood for how they interact with other software. Yes even if Thunderbird is the only software affected, even if your AV version did not change. Antivirus and Thunderbird have a complex relationship, and that relationship can be broken by updates or version changes of either software. But this is NO guarantee it is working correctly now. Warning: Your antivirus software probably worked great for months or years, across many previous versions of Thunderbird. I even tried disabling my antivirus software. Thunderbird is the only program that is affected. My Antivirus software has been working great.