We have a growing number of bugs reported against Editor that are either: 1. regressions from other fixes. 2. require fixes that risk more bugs like #1. This bug tracks creating tests from these bug reports, and creating other tests to exercise related functionality. By defining the invariants in <contenteditable>, we can be more confident when accepting patches.
Do you know who's in charge of this component at Mozilla? In the past Ehsan and Aryeh were working on it, but I don't see anymore fixing the *long* list of bugs/regressions about Editor.
What's this supposed to track? All editor bugs? Loic -- Masayuki is the owner of the component and I'm a peer, but there hasn't been a lot of development effort going into editor for years. (The same is true for other browsers AFAIK.)