Changes

Many add-ons will need to be updated, and we anticipate that some will break with the transition to the new APIs. There is a risk that some add-ons may not transition if they are not maintained or have maintainers who lack the time to port their add-on. We don't want to limit what add-ons can do in Firefox. The process we've started is designed to understand how we can extend Firefox in ways that are less brittle than the current XUL/XPCOM system. We will work with every developer who is interested to make their add-on work in Firefox, and work to provide the functionality required in as many cases as possible. That said, there This process is a risk designed to allow developers to extend Firefox in ways that some add-ons may not transition if they are not maintained or have maintainers who lack less brittle than the time current XUL/XPCOM system, and to allow Firefox itself to port their add-ontransition away from XUL/XPCOM.