1704562 - Slow print preview/print queuing

Status: NEW

(Core :: Printing: Output, defect)

Description

[Asif Youssuff]

A bit of a weird one, but there are perf issues and this queue is good at triaging issues to more specific components (please feel free to move as needed).

From: https://www.reddit.com/r/firefox/comments/mnil8l/firefox_for_mac_no_print_preview_and_slow_to/

Basic information

Steps to Reproduce:

1. Go a CNN webpage
2. File > Print

Expected Results:

Appears in print queue pretty much immediately (like Safari).

Actual Results:

Slow add to print queue after Print button is clicked.

---

More information

Screenshot: https://drive.google.com/file/d/1RPf-p2EvTPYLYQV6HdEaVNxQ4WIX4gn_/view?usp=sharing

Profile URL: https://share.firefox.dev/3wMkPU7

Also a profile with print.tab_modal.enabled set to false: https://share.firefox.dev/3uvFXMC

Basic systems configuration:

OS version: macOS 10.12

GPU model: Intel(R) HD Graphics 6000

Number of cores:

Amount of memory (RAM):

Thanks so much for your help.

Comment 1

[Asif Youssuff]

Attachment: about:support

Comment 2

[Emilio Cobos Álvarez (:emilio)]

Jonathan, looks like the issues you were seeing with asleep printers or such? Do you know if this is known?

Comment 3

[Jimmie Mayfield]

I see something similar on Thunderbird 91.6.1 for Linux (OpenSUSE 15.3, x86-64)

The built-in print dialog spins on "Preparing preview" for 90 seconds before the print preview appears, even when cups-pdf is the destination. Clicking "Print" while the throbber is spinning causes the button to be disabled but nothing is printed until the initial 90-second delay/timeout elapses (that is, if I open the print dialog, let it spin for 60 seconds, then click 'print', nothing is printed for another 30 seconds).

Setting print.tab_modal.enabled to False causes Thunderbird to use the system print dialog and everything works.

This is somewhat reminiscent of bug 1661751, comment #17 except that in this case I don't see an exception in the debug window.