Issues with message list in Thunderbird after updating to gnome 3.10

[Peter Vágner <pvdeejay gmail com>]

Hello,
I am not sure where might be the issue but I feel this is critical so 
I'm trying to make a lot of noise regarding it.

After upgrading to Thunderbird 24 I was still using gnome 3.8. I have 
noticed manipulating folder view and / or using message filter causes 
message list content in the main window of thunderbird to change and 
unfortunatelly it causes noticeable lag. It is a few seconds even with 
large folders. I have sent a query regarding this to Marco Zehe and 
Trevor Saunders at Mozilla so maybe I'll get an advice.
However after updating to gnome 3.10 the lag has even increased. While 
using multiple accounts in thunderbird, switching from one to the other 
sometimes causes such a lag that I need to restart thunderbird or orca 
in order to get some functionality back. Otherwise I can use orca in 
other apps but while thunderbird is in focus orca only speaks keypresses 
Without presenting anythink usefull.
So I am afraid this is no longer a thunderbird only issue.

It reminds me of gnome 2.x days where presentation of tables and lists 
was causing huge lags and freezes however currently this is the only 
place where I can observe a lag and freeze. For comparison I am able to 
browse the folder with 300 subfolders where each of them has at least 20 
or more files inside. Handling large lists in nautilus also takes little 
while but I haven't observed freeze and after a short while I can 
continue where I have left off without a need for additional workarounds.

Please can anyone try to reproduce this and also try to suggest 
something leading towards eventually solving this?


Greetings

Peter