From MozillaZine Knowledge Base
When a software update for Firefox becomes available, a dialog box pops up allowing the user to download and install the update. However, this dialog may pop up unexpectedly, causing the user to accidentally accept or cancel the update. To solve this, Firefox now waits until the browser has been left idle for a set amount of time before displaying the dialog. This preference determines how long the browser should be idle before opening the dialog.
Possible values and their effects
An integer specifying the seconds of idle time that must pass before displaying a pending software update dialog. Default value is 60.
First checked in
2007-11-20 by Reed Loden (patch by DÃ£o Gottwald)
Has an effect in