This required the following workaround in FinderHighlighter.jsm: // The outline needs to be sitting inside a container, otherwise the anonymous // content API won't find it by its ID later... let container = document.createElementNS(kNSHTML, "div"); let outlineBox = document.createElementNS(kNSHTML, "div"); outlineBox.setAttribute("id", kModalOutlineId); container.appendChild(outlineBox); [...] document.insertAnonymousContent(container); [...] modalHighlightOutline.setAttributeForElement(kModalOutlineId, "style", ...); setAttributeForElement and friends should be able to find the element that document.insertAnonymousContent was called with.

Comment on attachment 8790976 [details] [diff] [review] 21-Bug_1302556___Remove_the_workaround_from_FinderHighlighter_jsm__r_mikedeboer.diff Review of attachment 8790976 [details] [diff] [review]: ----------------------------------------------------------------- Yeah, I like this better :)

Pushed by kgupta@mozilla.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/59935b389c87 Start AnonymousContent::GetElementById iteration at mContentNode. r=smaug https://hg.mozilla.org/integration/mozilla-inbound/rev/7fb647a90a46 Remove the workaround from FinderHighlighter.jsm. r=mikedeboer

https://hg.mozilla.org/mozilla-central/rev/59935b389c87 https://hg.mozilla.org/mozilla-central/rev/7fb647a90a46