Blurry under windows high dpi setting

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Firefox 22 (no problem when version < 22)
2. Windows dpi setting set to larger than 100% (mine is 142%)

What is the expected output? What do you see instead?
The characters are all very blurry.
(see attachment. hi_dpi.png dpi=142% / orig_dpi.png dpi=100%)

What version of the product are you using? On what operating system?
Windows 7
Firefox 22

Please provide any additional information below.
It seems under higher dpi setting, Windows/Firefox fooled the canvas to render 
under low resolution and scaled it up with poor interpolation method.
Not sure if it's fixable...

Original issue reported on code.google.com by tux...@gmail.com on 3 Jul 2013 at 1:54

Attachments:

• hi_dpi.png
• orig_dpi.png

[GoogleCodeExporter]

Doh... I just found out a solution myself.
Just zoom the page down to 50-67% and the characters are clear as ever.

Original comment by tux...@gmail.com on 3 Jul 2013 at 2:36