796986 - Unresponsive script message breaks import window.

Status: RESOLVED DUPLICATE of bug 476541

(Firefox :: Bookmarks & History, defect)

Description

[Seebs]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:15.0) Gecko/20100101 Firefox/15.0.1
Build ID: 20120905151427

Steps to reproduce:

Started to import bookmarks, got to the modal file dialog box, then had to go mess with things for a bit to get the file I wanted to import.


Actual results:

The warning that a script may cause a page to become unresponsive was thrown up on the bookmarks window. This creates a problem:
1. You can't actually confirm or cancel the dialog box, because the script that would handle those events has been paused.
2. You can't kill or unpause the script, because the dialog box for the script is unavailable due to the modal file dialog box.


Expected results:

Probably, the import page should be completely immune to the watchdog. Failing that, don't use modal file dialogs, maybe?

Comment 1

[Matthias Versen [:Matti]]

The deadlock is bug 476541.