439850 - The edges of transparent fonts got the dissolve effect (broken text render)

Status: RESOLVED DUPLICATE of bug 363861

(Firefox :: General, defect)

Description

[Danail Karadaliev]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9) Gecko/2008052906 Firefox/3.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9) Gecko/2008052906 Firefox/3.0

When there is any small font in transparent container the edges of fonts get dissolve effect. Changing Windows XP font smoothing options changes the amount of given effect, but the problem stays.

Note: If you select the transparent text the effect magically disappear.

Here I'm uploading animated gif with effect:
http://onlinemedia.biz/photos/ff3_font_magic.gif

Reproducible: Always

Steps to Reproduce:
1. Create transparent container (div with opacity: 0.5 style)
2. Put some text in the container (text inherit the opacity style and become transparent)
3. There is it - the text edges get broken or parts of characters are missing
Actual Results:  
Small transparent fonts look extremely unreadable!

Expected Results:  
The text to look normal and readable like in all the previous versions of FireFox.

Windows XP SP2, build 2600. TFT 20.1" 1680x1050px 32bit
RADEON X800 GTO, driver version 2007.1220.2143.38732