1144751 - [UX] Print Preview on about:newtab (XUL) shows a "Progress: Preparing" popup that stays forever and never closes itself until user does.

Status: RESOLVED WORKSFORME

(Core :: Print Preview, defect)

Description

[[:Aleksej]]

Steps to reproduce:
1. Open a new tab (it should be about:newtab).
2. File -> Print Preview.
3. Close the error dialog if it appears (printing of XUL pages is not supported, but the dialog may just say there was an unexpected problem).


Actual results:

A popup with
----
Title: New Tab
Progress: Preparing…
----
stays forever until you close it.


Expected results:

No progress UI for a clearly impossible operation.


Regression window:
g 2014-10-28-03-02-04-mozilla-central-firefox-36.0a1.ru.linux-x86_64 a255a234946e
b 2014-10-29-03-02-07-mozilla-central-firefox-36.0a1.en-US.linux-x86_64 7e3c85754d32

Comment 1

[Mike Conley (:mconley) (:⚙️)]

What we should really do here is make sure that the user can never get into this state.

Comment 2

[:Gijs (out for now; he/him)]

Mike, I guess this is now fixed for about:newtab because it no longer uses XUL, but is still an issue for other things like about:preferences ?

Comment 3

[:Gijs (out for now; he/him)]

(maybe a dupe of bug 565414?)

Comment 4

[Mike Conley (:mconley) (:⚙️)]

Yeah, this is fixed now. For other XUL pages like about:preferences and about:config, bug 565414 seems like the right one. Thanks, Gijs!