Bug#640926: iceweasel: "Save As" dialog makes Iceweasel freeze after some time

[Mike Hommey]

tag 640926 unreproducible
thanks

On Thu, Sep 08, 2011 at 04:53:34PM +0200, Vincent Lefevre wrote:
> Package: iceweasel
> Version: 6.0.2-1
> Severity: important
> 
> The "Save As" dialog sometimes makes Iceweasel freeze after some time,
> when it has been open for several dozens of seconds. A consequence is
> that data that have not been saved yet (e.g. in forms) are lost.
> 
> This is always reproducible with the following steps (note that I'm
> using "focus follows mouse"):
> 
> 1. Rename the ".mozilla" directory to start with a fresh profile.
> 2. Start iceweasel. The current page is "about:home".
> 3. Select "File" → "Save Page As..." (the "Save As" dialog opens).
> 4. Move the mouse pointer to another area so that Iceweasel looses the
>    focus, and move it back to the "Save As" dialog after some time.
> 5. If nothing bad occurs, repeat step 4 (at least on my machine, this
>    loop is finite).
> 
> I get a dialog:
> 
>   Warning: Unresponsive script
> 
>   A script on this page may be busy, or it may have stopped responding.
>   You can stop the script now, or you can continue to see if the script
>   will complete.
> 
>   Script: resource:///modules/NetworkPrioritizer.jsm:175
> 
>   [ ] Don't ask me again
> 
>                                              [Stop script]  [Continue]
> 
> Whether I click on [Stop script] or [Continue], the dialog disappears
> but Iceweasel is completely frozen. I can see a zombie process:
> 
> UID        PID  PPID  C STIME TTY          TIME CMD
> vlefevre 29671 28784  1 16:43 pts/15   00:00:05 /usr/lib/iceweasel/firefox-bin
> vlefevre 29675 29671  0 16:43 pts/15   00:00:00 [firefox-bin] <defunct>

It doesn't happen here. Does it happen with version 5 (from testing), 7
(from experimental) or 8 (aurora, from mozilla.debian.net) ?

Mike