![Thunderbird for MacOS taking too much energy and laptop getting hot. | Thunderbird Support Forum | Mozilla Support Thunderbird for MacOS taking too much energy and laptop getting hot. | Thunderbird Support Forum | Mozilla Support](https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2019-10-02-15-05-12-f19bef.png)
Thunderbird for MacOS taking too much energy and laptop getting hot. | Thunderbird Support Forum | Mozilla Support
![on startup thunderbird stops answering with 25% cpu usage W10 | Thunderbird Support Forum | Mozilla Support on startup thunderbird stops answering with 25% cpu usage W10 | Thunderbird Support Forum | Mozilla Support](https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2018-06-20-18-22-33-4f8ec9.png)
on startup thunderbird stops answering with 25% cpu usage W10 | Thunderbird Support Forum | Mozilla Support
![Thunderbird for MacOS taking too much energy and laptop getting hot. | Thunderbird Support Forum | Mozilla Support Thunderbird for MacOS taking too much energy and laptop getting hot. | Thunderbird Support Forum | Mozilla Support](https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2019-10-02-15-05-05-5b6756.png)
Thunderbird for MacOS taking too much energy and laptop getting hot. | Thunderbird Support Forum | Mozilla Support
Thunderbird hangs with high constant CPU load (25%) and increasing memory usage (1GB+) · Issue #326 · Ericsson/exchangecalendar · GitHub
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