--- a/layout/base/nsBidiPresUtils.cpp
+++ b/layout/base/nsBidiPresUtils.cpp
@@ -690,17 +690,21 @@ nsBidiPresUtils::Resolve(nsBlockFrame* a
     bpd.PushBidiControl(ch);
   }
   for (nsBlockFrame* block = aBlockFrame; block;
        block = static_cast<nsBlockFrame*>(block->GetNextContinuation())) {
     block->RemoveStateBits(NS_BLOCK_NEEDS_BIDI_RESOLUTION);
     nsBlockInFlowLineIterator lineIter(block, block->LinesBegin());
     bpd.mPrevFrame = nullptr;
     TraverseFrames(aBlockFrame, &lineIter, block->PrincipalChildList().FirstChild(), &bpd);
-    // XXX what about overflow lines?
+    nsBlockFrame::FrameLines* overflowLines = block->GetOverflowLines();
+    if (overflowLines) {
+      nsBlockInFlowLineIterator lineIter(block, overflowLines->mLines.begin(), true);
+      TraverseFrames(aBlockFrame, &lineIter, block->PrincipalChildList().FirstChild(), &bpd);
+    }
   }
 
   if (ch != 0) {
     bpd.PopBidiControl(ch);
   }
 
   return ResolveParagraph(aBlockFrame, &bpd);
 }