Hi All - I am running a different version of Thunderbird on two different machines. The two machines have identical email addresses added. Machine 1: '''OS:''' Windows 10 Enterprise Edition '''Thunderbird:''' 78.8.0 Portable Edition Machine 2: '''OS:''' Manjaro Linux '''Thunderbird:''' 78.8.1 (non portable, installed from Manjaro repository) '''Problem:''' On my Windows machine I have a constant RAM issue whereby Thunderbird is eating up 4+ gigs of RAM causing my entire system to meltdown, requiring constant force quits of Thunderbird or, it actually just crashing. I am constantly submitting crash reports through the built-in Thunderbird crash dialog. When I first open Thunderbird in Windows I'm seeing RAM usage of about 290 megs, that slowly creeps up over time, often times peaking at over 4000 megs. The problem does not happen at all on my Linux machine running the full install of Thunderbird. Assistance much appreciated. Trying to use Thunderbird across all devices. Unfortunately on my Windows machine I am stuck with portable edition. It's close to unusable in Windows as often times I'll be in the middle of a work email and I'll have "not responding" nightmares whereby Thunderbird is completely unusable for ~30-60 seconds or worse a crash in the middle of writing an important email. Really trying to avoid going back to Outlook on Windows for multiple obvious reasons. Thanks in advance.