To clarify, in case someone picks this up while I am on PTO: * It could be tricky to repair all context menu items, as each one may need specific changes to get it working * If someone does attempt to repair them, please attempt to do so without changing /browser code like nsContextMenu.js * If repairing the context menu is too difficult, I think it would be acceptable for now to use a custom context menu for the viewport that has _only_ the "Inspect Element" action (and possibly others if they are working) so at least the broken actions are hidden

I'm attempting to move this forward one way or another.

I moved text actions (cut / copy / paste / select all) to bug 1313291 since they are more complex and require a different solution than the other things here.

Comment on attachment 8804998 [details] Bug 1278762 - Support spell check context menu actions in RDM. https://reviewboard.mozilla.org/r/88808/#review88128

Comment on attachment 8804999 [details] Bug 1278762 - Support share this page from context menu in RDM. https://reviewboard.mozilla.org/r/88810/#review88130

Comment on attachment 8805000 [details] Bug 1278762 - Support general context menu actions in RDM. https://reviewboard.mozilla.org/r/88812/#review88132

Comment on attachment 8805001 [details] Bug 1278762 - Support page info context menu actions in RDM. https://reviewboard.mozilla.org/r/88814/#review88134

Comment on attachment 8805002 [details] Bug 1278762 - Support view selection source in RDM. https://reviewboard.mozilla.org/r/88816/#review88136

Comment on attachment 8805003 [details] Bug 1278762 - Support view source in RDM. https://reviewboard.mozilla.org/r/88818/#review88082 ::: devtools/client/responsive.html/browser/tunnel.js:121 (Diff revision 1) > + get() { > + return inner.outerWindowID; > + }, > + configurable: true, > + enumerable: true, > + }); I'm lost. Isn't that replacing that other overload? http://searchfox.org/mozilla-central/source/devtools/client/responsive.html/browser/swap.js#220-227

Comment on attachment 8805004 [details] Bug 1278762 - Support printing in RDM. https://reviewboard.mozilla.org/r/88820/#review88138

Comment on attachment 8805003 [details] Bug 1278762 - Support view source in RDM. https://reviewboard.mozilla.org/r/88818/#review88082 > I'm lost. Isn't that replacing that other overload? > http://searchfox.org/mozilla-central/source/devtools/client/responsive.html/browser/swap.js#220-227 This one exposes the inner `outerWindowID` on the outer browser. The one you linked only adds a getter to the inner browser so that `_outerWindowID` _property_ is accessible as the _getter_ (without underscore).

Comment on attachment 8805003 [details] Bug 1278762 - Support view source in RDM. https://reviewboard.mozilla.org/r/88818/#review88148

Pushed by jryans@gmail.com: https://hg.mozilla.org/integration/autoland/rev/24b223ac858b Support spell check context menu actions in RDM. r=ochameau https://hg.mozilla.org/integration/autoland/rev/3a0794bd1c72 Support share this page from context menu in RDM. r=ochameau https://hg.mozilla.org/integration/autoland/rev/86073e584fa7 Support general context menu actions in RDM. r=ochameau https://hg.mozilla.org/integration/autoland/rev/13810b9cd717 Support page info context menu actions in RDM. r=ochameau https://hg.mozilla.org/integration/autoland/rev/4507a959d08b Support view selection source in RDM. r=ochameau https://hg.mozilla.org/integration/autoland/rev/b8ee6ceb5e6e Support view source in RDM. r=ochameau https://hg.mozilla.org/integration/autoland/rev/a87bd4b96744 Support printing in RDM. r=ochameau

https://hg.mozilla.org/mozilla-central/rev/24b223ac858b https://hg.mozilla.org/mozilla-central/rev/3a0794bd1c72 https://hg.mozilla.org/mozilla-central/rev/86073e584fa7 https://hg.mozilla.org/mozilla-central/rev/13810b9cd717 https://hg.mozilla.org/mozilla-central/rev/4507a959d08b https://hg.mozilla.org/mozilla-central/rev/b8ee6ceb5e6e https://hg.mozilla.org/mozilla-central/rev/a87bd4b96744

I have reproduced this bug with 50.0a1 (2016-06-07) on Windows 7, 64 Bit ! This bug's fix is verified with latest Nightly Build ID 20161109030210 User Agent Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:52.0) Gecko/20100101 Firefox/52.0 [bugday-20161109]

I reproduced this bug using Fx 50.0a1, build ID: 20160607071209, on Windows 10 x64. I can confirm this issue is fixed, I verified using Fx 52.0a1, build ID: 20161110030211 on Windows 10 x64, Mac OS X 10.11 and Ubuntu 14.04 LTS. Cheers!