Open Bug 1747401 Opened 4 years ago Updated 1 year ago

It takes too long time Print preview about:config. During that period, the whole Firefox becomes unresponsive.

Categories

(Toolkit :: Printing, defect)

Product:
Toolkit
Component:
Printing
Platform:
Desktop
Windows 10
Type:
defect

Tracking

()

Tracking Flags:
Tracking Status
firefox-esr91 --- wontfix
firefox95 --- wontfix
firefox96 --- fix-optional
firefox97 --- affected

People

(Reporter: alice0775, Unassigned)

Details

(4 keywords)

Steps to Reproduce:

  1. Open about:config and confirm if warning dialog appears.
  2. Click Show All
  3. Open print preview (Ctrl+P)

Actual Results:
It takes too long time Print preview about:config.
Spinning spinner stops.
During that period, not cancel-able the Print preview, and the whole Firefox becomes unresponsive.

Expected Results:
Progress should show. (Show me progress on how long I have to wait.)
It should be cancel-able.
At the very least, I want the main menu to have reactions.

Ouch! This hangs for about a minute for me on a fast Linux machine. We basically get stuck looping over the children in nsPageSequenceFrame::Reflow fragmenting a 200 page table.

Severity: -- → S3

Experienced this today by accidentally using the wrong keyboard shortcut.

https://share.firefox.dev/4aw6Qop

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