What happens if you start thunderbird in safe mode?? See Help | restart

It works in safe mode with add-ons disabled

901group said

It works in safe mode with add-ons disabled

This indicates either an addon is causing the problem, or hardware acceleration. Which addons do you have installed, and can you narrow down whether just one of them causes the freeze?

I reinstalled 38.1.0 but it still freezes in normal mode. If I start in safe mode with all addons it will function. It also functions in safe mode with all addons removed.

What happens if you disable hardware acceleration at tools | optioins | advanced | general??

No change. Now to look at my folders I have to right click and open them in a new tab(?) Since the reinstall it at least is not locking up the computer

> If I start in safe mode with all addons it will function. > Since the reinstall it at least is not locking up the computer

What antivirus software do you run?

McAfee. Also tried register cleaner. I can work in Safe Mode. If I start from the Desktop icon it will freeze the computer still. Also of interest, Windows Update will not work. I tried Microsoft repair solution but did not fix it. I scanned again with Malwarebytes but found nothing

https://wiki.mozilla.org/Thunderbird:Testing:Antivirus_Related_Performance_Issues#McAfee

I have tried the anti virus suggestions. Had to fix MS Update also via admin CMF sfc scannow which fixed Update but did not fix Thunderbird. I load from the icon on the desktop and I can only open (1) email then nothing more but it does not freeze Win7. I can open from safe mode and run. I have reinstalled update 38.1.0 again with same results. Wasted a whole day investigating fixes. Ideas?

I have tried the anti virus suggestions.

What does this mean? If you're having difficulties to follow the instructions please contact McAfee support.

I have made all changes related to McAfee. This issue started when the update for 38.1.0 was installed. I did not have problems prior to this point

901group said

I have made all changes related to McAfee. This issue started when the update for 38.1.0 was installed. I did not have problems prior to this point

It's hard to believe, I know. But it doesn't matter that the problem did not exist prior to version 38. The problem is with McAfee.

Crash report Crash ID: bp-1dee22ea-a77f-47c0-ae9d-27d7c2150513 Any new ideas or is it still McAfee?