OBS: This is related to the windows 10 display settings. Maybe the favicons is only rendered differently with window.open if you have "customize your display"/"Change the size of text, apps, and other items" set to 200%, on a FHD monitor.

Here is attached another example.

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> OBS: This is related to the windows 10 display settings.

I'm not so sure about that. I'm seeing it on Windows 7 too with default scaling. But instead of being blurry icon is pixelated and appears to be generated from 16x16px image, even when smallest image in favicon.ico is 32x32px.

Hi Iwasawa. ok. On my two monitors it look like it renders in the same way when just windows display size is set to 100%. So to repreduce maybe for some it is needed to change display size.

I use png, not ico. The same with both 16*16 and 32*32.

Its like it just renders differently, maybe depending on the type of image. Here is an example from a display 100%.

http://popuptest.com/ can also be used to easy reproduce.




 

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Unable to reproduce the issue on Windows 10,Mac 10.12.2 & ubuntu-14.04 using chrome reported version-56.0.2924.87 & latest Canary-58.0.3025.0 as per comment#0 & comment#6.
1.Launched chrome 
2.Navigated to " https://bugs.chromium.org/p/chromium/issues"  & observed fevicon
3.Typed "javascript:window.open("https://bugs.chromium.org/p/chromium/issues/detail?id=428798", "_blank", "height=400,width=400,left=0,top=0,resizable=yes,titlebar=yes,status=yes");" in address bar & hit enter
4.New window opened successfully & observed fevicon

Noticed that both fevicons are clear.
As per comment#6,tested the URl(http://popuptest.com/) but no issue observed.
Please find the attached screencast & let us know if we miss any steps to reproduce the issue.
Thank you!!

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I suggest different set of actions.

1. Choose a website that is known to have favicon larger than 16x16. Let's go with google.com
2. Add shortcut to the said website to the desktop, so you could open it in a separate window. 
3. Open said website in a standalone window. 
4. Now open the same website in a different kind of window using javascript: 
   javascript:window.open("https://google.com", "_blank", "height=400,width=400,left=25,top=25,resizable=yes,titlebar=yes,status=yes");
5. Look at something that displays icons of the open windows in 32x32 size. Either an Alt+Tab panel or the task bar with large icons would do. Observe the difference between two icons which originated from the same file

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Thx Iwasawa!

I made a good website for test here:
http://www.basechat.com/chromebug/Favicon-looks-blurry/

The favicon used on this page is very detalied and it may be easier to see the problem.

Magnifier-tool on windows can be usefull to see the problem. Or screenshot and then zoom in Paint.

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Thank you for providing more feedback. Adding requester "jmukthavaram@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Able to reproduce this issue on Win-10 using chrome reported version #56.0.2924.87 and latest canary #58.0.3026.0 .

Issue is specific to windows only.

This is a non-regression issue as it is observed from M35 old builds. 

Hence, marking it as untriaged to get more inputs from dev team.

Thanks...!!

Thx - and thanks to Jmukt!.

Be also aware of Iwasawa post and video above, it shows that the issue also affects favicons in taskmanager and taskbar.

Best regards 
Anders Both

Archiving old bugs that haven't been actively assigned in over a year.

If you feel this issue should still be addressed, feel free to reopen it or to file a new issue. Thanks!

Archiving old bugs that haven't been actively assigned in over a year.

If you feel this issue should still be addressed, feel free to reopen it or to file a new issue. Thanks!

Archiving old bugs that haven't been actively assigned in over a year.

If you feel this issue should still be addressed, feel free to reopen it or to file a new issue. Thanks!

I believe I found the same issue in another context here:
https://bugs.chromium.org/p/chromium/issues/detail?id=890458

Referenced this issue. Hope this doesn't get auto-closed, too :(