Ubuntu
thunderbird package

  1. Bug #1959747
  2. Comment #1

Comment 1 for bug 1959747

Revision history for this message
In , Adm-e (adm-e) wrote :

User Agent: Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0

Steps to reproduce:

My Linux Arch/Manjaro TB package was just upgraded:
78.14.0-0.1 -> 91.1.0-0.1
and immediately i have noticed the new feature/issue:
in the unified Inbox i am moving mouse up/down quickly through the list of e-mails and i can see that the line the mouse is on is highlighted with delay, meaning that this highlight action may be not optimized/badly made or CPU heavy.
And i think that my XFCE tray CPU usage meter is showing that the CPU usage rise when i move the mouse through the list of e-mails.
I can confirm this by running "htop" in terminal, F4, type "thund", enter now move cursor in thunderbird and i can see that the CPU usage of the /usr/lib/thunderbird/thunderbird jumps from 2% of the CPU core to the 30-60% of the CPU core.

Expected results:

Feature optimized to have nearly no performance impact or removed.