644087 - PNG files used for branding are not optimized, overall Firefox size could be smaller

Status: RESOLVED DUPLICATE of bug 631392

(Firefox :: General, defect)

Description

[Frédéric Kayser]

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; fr; rv:1.9.2.15) Gecko/20110303 Firefox/3.6.15
Build Identifier: Mozilla/5.0 (X11; Linux x86_64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1

It looks like most .png files used within Firefox itself have just been saved using Adobe ImageReady, these files could actually be 10% smaller (or even more).
There are a few well-known tools like OptiPNG, CryoPNG, PNGOUTWin, DeflOpt that are used by skilled web designers to reduce the weight of PNG files to speed-up loading time.
I have applied these tools to the files in the branding/firefox/content/ directory, here are the results (size is in bytes, -o is the optimized version):

55620 about-logo.png
49858 about-logo-o.png

48917 about.png
45253 about-o.png

9395 icon64.png
8385 icon64-o.png

5640 icon48.png
5096 icon48-o.png

2659 about-wordmark.png
1559 about-wordmark-o.png


Reproducible: Always

Steps to Reproduce:
1. Apply any optimization tool.
Actual Results:  
PNG files end up smaller.

Expected Results:  
Optimized PNG files should be included.

Comment 1

[Frédéric Kayser]

Attachment: Archive containing optimized PNG files