작성: Julian Fitzell (개발자), 날짜: 3월 23, 2013 · 고유 주소

I can only think of two causes:
1) You're using a non-official Firefox build, which doesn't know its ABI or doesn't have the ABI set to "Darwin"; or
2) You've downloaded the add-on .xpi file to your computer first and are installing it from there instead of from Mozilla Addons. Whenever I release a new version, I update the maximum supported version in the install manifest to the newest release (the site does not allow omitting this or setting it for future versions). Mozilla Addons updates the compatibility automatically, but since Firefox versions come out much more often than I release updates of the add-on, if you download the file yourself it may not be up to date. If you force installation it will probably work anyway.

If neither of those is the problem, I have no idea what to suggest.

작성: Julian Fitzell (개발자), 날짜: 3월 22, 2013 · 고유 주소

Hmm... I just double-checked installing and running in Firefox 14.0.1 and it all works fine for me. It could possibly be the version of OS X you are running (it works on 10.6, probably works on 10.5, but definitely won't work on 10.4).

Please report a bug in the issue tracker with the exact install process you are following, the exact error message you are receiving, and any other relevant details. If I can reproduce your problem, I'll try to fix it.