836736 - Selected text font changes to default when firefox is left in the background in pdf.js

Status: RESOLVED DUPLICATE of bug 815170

(Firefox :: PDF Viewer, defect)

Description

[Ada [:adalucinet]]

Attachment: Selected text behavior in Windows

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:19.0) Gecko/20100101 Firefox/19.0
Build ID: 20130130080006

STR:
1. Launch Firefox 19 beta 4.
2. In the Tools Menu select Options -> Content tab change the default font (make sure the "Allow pages to choose their own fonts, instead of my selection above' checkbox is marked) -> click on the Ok button and dismiss the Options dialog.
3. Navigate to http://www.manning.com/lowagie/sample-ch03_Lowagie.pdf and select some text.
4. Open any window from the taskbar.

Expected results:
Font of the selected text is the same as before changing windows.

Actual results:
Font of the selected text changes to the one selected at step 2. 

Note: This is reproducible on the latest Nightly and Aurora.
I encounter the same behavior in safe mode and with a clean profile.

Comment 1

[Ada [:adalucinet]]

Attachment: Selected text behavior on Mac OS X 10.8

Comment 2

[Ada [:adalucinet]]

The regression-window I've found:

Last good nightly: 2012-10-17
First bad nightly: 2012-10-18

http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=dac5700acf8b&tochange=cb573b9307e5

When I download Nightly from 2012-10-17 it looks bad, not last good as above. I've search for regression-window two times with the same result. I'm going to look into it again on tuesday, untill then I'm in PTO.

Comment 3

[Mihaela Velimiroviciu (:mihaelav)]

The Mac issue is bug 815170, but I'm not sure if on Windows is the same issue. Brendan, Yury, what do you think?