1605618 - "About" window stuck on "Restarting..." if restart is cancelled in onbeforeunload prompt

Status: RESOLVED DUPLICATE of bug 1607498

(Toolkit :: Application Update, defect, P3)

Description

[giul.mus]

To reproduce:

1. wait for a Firefox Nightly update to be available
2. visit a page that has an onbeforeunload prompt (i.e. "This page is asking you to confirm that you want to leave"), eg. http://www.4guysfromrolla.com/demos/OnBeforeUnloadDemo1.htm
3. open "About Nightly" (hamburger menu > Help > About Nightly)
4. download the update if necessary, then click "Restart to update Nightly"
5. the onbeforeunload prompt will appear. Select "Stay on Page"
6. return to the About window

You'll see that the button was replaced by a spinner that says "Restarting...", however, it will spin indefinitely. It can be fixed by closing the About window and opening a new one, which will again show the "Restart to update Nightly" button.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.