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|User since||April 17, 2013|
|Number of add-ons developed||0 add-ons|
|Average rating of developer's add-ons||Not yet rated|
Does not work on 20.0.1. Sad that the FF developers put their own desires above the users when removing the long-standing ESC key functionality. Sadder that they then cited the existence of this add-on to justify their refusal to restore the traditional ESC key functionality, and this add-on doesn't even work.
2013-04-17 ETA - I filed an issue as requested: https://github.com/gavinsharp/SuperStop/issues/2