What I usually do in these cases is right-click the frame content and select "This Frame -> Open Frame in New Tab". That ensures I have the parent frame as referrer, and I can interact with it in cases where iframes only work if referred by the main domain, like CodePen.
I don't think you can, sorry.
What I usually do in these cases is right-click the frame content and select "This Frame -> Open Frame in New Tab". That ensures I have the parent frame as referrer, and I can interact with it in cases where iframes only work if referred by the main domain, like CodePen.
Unfortunately, I can't do this.
Can I submit a suggestion for this to Firefox Developers? Where?
Yes please! The team lives in Bugzilla, so file a bug there and label it as an enhancement. bugzilla.mozilla.org/enter_bug.cgi...
Ok, I created a bug:
bugzilla.mozilla.org/show_bug.cgi?...
Thank you. I've voted for it now, hopefully some more people will and it will be picked up for development!