1515657 - Firefox hangs when entering print preview

Status: RESOLVED WORKSFORME

(Core :: Printing: Setup, defect)

Description

[Bogdan Maris [:bogdan_maris], Release Desktop QA]

Attachment: about:support info

[Affected versions]:
- Firefox Release 64.0
- Firefox Beta 65.0b5
- Latest Nightly 66.0a1

[Affected platforms]:
- Windows 7 x64

[Steps to reproduce]:
1. Start Firefox with a new profile
2. Open any webpage (eg. wikipedia.org) - this step is totally extra, it does take longer if a webpage is opened.
3. Open hamburger menu and click print.

[Expected result]:
- Print preview opens without issues

[Actual result]:
- There is a huge hang when entering print preview (~1 minute)

[Regression range]:
- Not sure if this is a regression, will investigate ASAP.

[Additional notes]:
- Here is a profile capture https://perfht.ml/2PNSpTf
- I did tried on multiple machines but for some reason only this one is affected, on others the pages goes into print preview in 2-3 seconds.
- File attached has the about:support info.
- I did tried with both 32bit and 64bit build.

Comment 1

[Daniel Holbert [:dholbert]]

Do you have a network printer set up on a slow network, or anything like that?

At first glance, it looks like your profile shows that we're hanging in a Windows-provided DLL, which we call into from functions like nsPrinterEnumeratorWin::InitPrintSettingsFromPrinter and nsresult nsDeviceContextSpecWin::GetDataFromPrinter.

That sounds like Windows is taking forever to get us some answers.

Comment 2

[Daniel Holbert [:dholbert]]

Also: does a normal "Print" operation have the same issue? (Reclassifying on the assumption that it does.)

And do other programs (e.g. Notepad, Chrome) show the same issue with their own "print" functions?

Comment 3

[Bogdan Maris [:bogdan_maris], Release Desktop QA]

Yap, you were right, other programs had the same issue, even notepad. I checked where my printer was (in another city...at another office) so I uninstalled it and connected to the one from my actual office and now it works as expected. Thanks for pointing that out! I can now use the printer \o/. Closing as worksforme.