Please see https://wiki.mozilla.org/Thunderbird:Testing:Antivirus_Related_Performance_Issues#Microsoft_Windows_Defender_aka_%22Antimalware_Service_Executable%22_(ASE)_aka_MsMpEng.exe
@timber, in the last few weeks we have had several performance fixese delivered in versions of 128. And there is more coming. If you have a problem with version 128 still, please post a support request.
Thanks for the idea. Merging this to https://connect.mozilla.org/t5/ideas/make-thunderbird-adaptive-and-touch-friendly/idi-p/29309 which has many votes, and largely covers the idea.
You are suggesting applying multi-process(or) to the Thunderbird code base. It is a worthy idea. But there two big reasons this has not been done in a major way:1) Payback (effort vs gain) - Thunderbird tends to not be processor bound, which would ...
