This year in July my wife and I also climbed this ridge (Molignon) via ferrata Laurenzi, but in the opposite direction to what's described here; some tips for repeaters who want to do it in one day from Val Fassa:
1. in the evening call one of the taxi drivers (e.g. this gentleman +39 336 352 881), who take you to Val Duron even before official schedule and stick to the agreed time, e.g. at 6am he's waiting for you in Campitello at the agreed place at the end of the village by the Duron river and even shows you where to park for free (before the hill, where the road is actually closed).. he takes you to Rif. Micheluzzi (1860m) and can pick you up there in the afternoon if you arrange so
2. tackle the Molignon ridge in the direction we did it, because access to Rif. Antermoia is faster and more direct than to Rif. Alpe di Tires, and therefore you're in the wall/on the ridge sooner, without needing to sleep
3. the ridge is easier in this direction than the opposite, where there are quite hard sections continuously down. In this direction up
So from Rif. Micheluzzi, right behind the building, we go on the grassy path and after 500 m back to the gravel road; on it towards the valley another good kilometer to the signs, where we turn left across the stream towards pass Ciaregolle (to here good hour), then after the pass right above Val Dona (Zenska) to pass Dona; behind it flat to Rif. Antermoia (to here total 2h), which this year for the second time is being renovated and currently you can't sleep there.
Behind Rif. we go past lake Antermoia and after it about 200 m right up steep scree, which in the middle splits into two gullies, choose LEFT, although at first glance it looks more hopeless than the right one.
At the top of the gully is the entry to ferrata Laurenzi (to here total 3h). First 30 m are the hardest, have to pull over some slabs and overhangs, but between them you can rest nicely, also plenty of options for belaying; this year one piton was loose, but without problem you can get through.
Behind slabs go towards the notch and from it right up to the right summit of Antermoia Kogel / Croda dei Cirmei (flat summit with brown soil!,2852m). Here the fun begins! First down, the ridge is easy, about 0.5 m wide, but very exposed, airy on both sides "for export", those with fear of heights no way here; no cables in this section. After about 100 m descend left down gravel slope; when passage runs out see small pegs on right, over which pull over slabs distance about 10 m; cable is torn, initial part almost usable, but not for belaying; then steep gully to notch, above it on slab left back to ridge. Then along ridge detouring to north side (right) on flakes to last exit section (in between into one notch) and to summit Molignon (2779m), from there right on easy terrain to repeated notch, which is easy. Behind it sharply left down over easy pinnacles towards saddle Molignon (2598m). When we reach north saddle (actually two saddles together, from here few meters up towards NW to opposite side, by no means south of saddle and down to hut Alpe di Tires (red roof). Then down Val Duron to start, total about 7h, max 10 h.