User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:50.0) Gecko/20100101 Firefox/50.0 Build ID: 20161209095719 Steps to reproduce: Firefox may give [...] a "Warning: Unresponsive script" prompt that says "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" [REF “https://support.mozilla.org/en-US/kb/warning-unresponsive-script”]. However, that prompt doesn’t indicate that Firefox is the issuing process indeed, which complicates tracing the cause of a ‘stalling’ machine. I propose to add “Mozilla Firefox: ” to the prompt title, making it become: “Mozilla Firefox: Warning: Unresponsive script”.
The dialog box is modal, which is not enough? Although, the dialog box has enough space to add a full brand name to the title.
Severity: normal → trivial
Component: Untriaged → General
The dialog box may be modal, but it could be issued while user focus is not at the Firefox main window which could make it unclear for the user (as it was for me very recently) that indeed this program issued it.
(In reply to h.h.m.draisma from comment #2) > The dialog box may be modal, but it could be issued while user focus is not > at the Firefox main window which could make it unclear for the user (as it > was for me very recently) that indeed this program issued it. I think it can be discovery since the Firefox window is brought to the foreground and the title bar flashes when the modal dialog or the Firefox window is clicked, on Windows. This may appear different styles in Linux.
Severity: trivial → normal
This dialog comes from DOM nsGlobalWindow code, so moving to DOM.
Component: General → DOM
Product: Firefox → Core
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