(In reply to :Gijs (he/him) from comment #7) > (In reply to Emilio Cobos Álvarez (:emilio) from comment #6) > > I can repro this on Linux too... Do you know how do we communicate the dialog resize to the inner document? The viewport seems to be off by a bit. > > I'm unclear what you mean, sorry. What "dialog resize"? Oh, sorry, I came here from the other bug and was confused. I think https://searchfox.org/mozilla-central/rev/803a42f24c8714631ed81cb824ea1c1a803cb7b8/browser/components/preferences/in-content/subdialogs.js#452 is what you're looking for...
Bug 1608910 Comment 8 Edit History
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(In reply to :Gijs (he/him) from comment #7) > (In reply to Emilio Cobos Álvarez (:emilio) from comment #6) > > I can repro this on Linux too... Do you know how do we communicate the dialog resize to the inner document? The viewport seems to be off by a bit. > > I'm unclear what you mean, sorry. What "dialog resize"? Oh, sorry, I came here from the other bug and was confused. I think https://searchfox.org/mozilla-central/rev/803a42f24c8714631ed81cb824ea1c1a803cb7b8/browser/components/preferences/in-content/subdialogs.js#452 is what you're looking for... Otherwise, it's "just" an iframe which will change size based on the containing box, I think?