1083163 - Problems with font 'smoothness' when using Firefox in a Windows 2008 Server R2 terminal session

Status: UNCONFIRMED

(Core :: Graphics: Text, defect)

Description

[Cyberdyne IT]

Attachment: Firefox_bug.jpg

User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0
Build ID: 20140923175406

Steps to reproduce:

1. Install Windows 2008 R2 Server with terminal services
2. Install Firefox 32.0.3 or 33.0.0 (also reproducable with older versions)
3. Connect to a terminal session using Windows Remotedesktop Client


Actual results:

Font displayed is pixelated (see screenshot). Using other browsers on the same system the font looks much smoother. 
Best anology I can give: it looks like anti-aliasing is missing or something
Tried several websites, all of them were affected, although some are worse than other
On a different system the tested websites are working fine

Comment 1

[Alice0775 White]

Could you paste "Graphics" section of about:support ?

Comment 2

[Alice0775 White]

And, 
Clould you try to set gfx.font_rendering.directwrite.enabled = true in about:config?  (After you change the value, it is necessary to restart the brower)

Comment 3

[Cyberdyne IT]

Attachment: Firefox about support.JPG

Added about:support Graphics section
Error does not occur using teamviewer to connect to the server. Video card description in about:support changes to hyper-v video card when using teamviewer.

Changing gfx.enable.direct.write did not fix the problem. 

I upgraded to Firefox 33 in the mean time, which did not solve the issue.