727274 - Allow preference changes to be reverted or reset to default during some time duration after making a change

Status: NEW

(Firefox :: Settings UI, defect)

Description

[Jared Wein [:jaws] (please needinfo? me)]

The in-content preferences being implemented as bug 718011 will use instant apply on all platforms.

We should provide a way for users to revert or reset their preferences for some predetermined time after they have made a change.

From Benedikt P. [:Mic] at http://msujaws.wordpress.com/2012/02/14/msu-cse-capstone-update-214/comment-page-1/#comment-1464: 
> Will there be a way to restore previous settings or to undo a change (e.g. if 
> someone accidently selected a different font size from the dropdown and has no 
> idea what it was before)? I really liked that I had to explicitely accept 
> changes until now or could discard them if unsure. You just couldn’t do 
> anything wrong unless you clicked the OK button of that dialog.