Thunderbird 68.2.1 on Linux, I can confirm that this issue still exists, with createElementNS() as given above, and the SMTP sending progress bar from bug 742697, and the IMAP loading progress bar in the status bar when switching between folders.
15-20% CPU usage.
Thunderbird 68.2.1 on Linux, I can confirm that this issue still exists, with createElementNS() as given above, and the SMTP sending progress bar from bug 742697, and the IMAP loading progress bar in the status bar when switching between folders.
15-20% CPU usage.