Disable hardware acceleration to fix graphics glitches and crashes.
A couple weeks ago, Thunderbird updated itself, and my email life went to hell. The screen kept going black. Often all the icons on the email folders were missing. I often had to minimize and reopen Thunderbird to see anything. I was killing it and restarting it maybe 8 times a day when it hung completely. It crashed itself, and sent error reports, maybe 20 times a day. Absolutely horrible.
I finally found this article, that explains how to disable hardware acceleration:
That worked. Apparently in one of the recent updates, Thunderbird turned hardware acceleration on, when for my system, it needed to be off. (I dimly remember turning it off before.)
الحل المُختار
In addition, there is a simple switch off in Options.
'Tools' > 'Options' > 'Advanced' > 'General' tab or 'Menu icon' > 'Options' > 'Options' > 'Advanced' > 'General' tab
To switch off: uncheck 'Use hardware acceleration when available' click on 'OK'.
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الحل المُختار
In addition, there is a simple switch off in Options.
'Tools' > 'Options' > 'Advanced' > 'General' tab or 'Menu icon' > 'Options' > 'Options' > 'Advanced' > 'General' tab
To switch off: uncheck 'Use hardware acceleration when available' click on 'OK'.
Thank you much, Toad-Hall! Very timely, too. I was just contemplating whether to install the latest Thunderbird update, when the last one gave me grief for a week...
P.S. This option is new. I was using Thunderbird 36.0, which did not include the hardware acceleration option on Tools > Options > Advanced > General.