When any remote process doesn't have focus, i.e., the main process has focus, EventStateManager in the main process posts eKeyPress event which may match with content accesskeys to *all* remote children. However, this means that two or more remote processes may handle same content accesskey. Olli Pettay [:smaug] Bug 1333459 Comment 26 > ::: dom/events/EventStateManager.cpp:1209 > (Diff revision 1) >> - // A remote child process is focused. The key event should get sent to >> - // the child process. >> + // processes. >> + else if (!aEvent->IsHandledInRemoteProcess()) { >> - aEvent->mAccessKeyForwardedToChild = true; >> - } else { >> AccessKeyInfo accessKeyInfo(aEvent, aAccessCharCodes); >> nsContentUtils::CallOnAllRemoteChildren(mDocument->GetWindow(), > > Why do we have this kind of code. Looks bizarre. Why we send event to all the tabs? Masayuki Nakano [:masayuki] (JST, +0900) Bug 1333459 Comment 27 >> Why do we have this kind of code. Looks bizarre. Why we send event to all the tabs? > > See above comment. I think that this is actually working with only one remote process. (Anyway, this is out scope of this bug and if we need to discuss more, we should wait Enn to back.

Moving to p3 because no activity for at least 1 year(s). See https://github.com/mozilla/bug-handling/blob/master/policy/triage-bugzilla.md#how-do-you-triage for more information