I've used https://wago.io/xu1ybQZDZ and modified it slightly to fit a different need/want - original WA credit to Zyim's Auto Roll Weak Aura.
I modified this weak aura to load and perform the following actions in WotLK 5 man dungeons (not just parties for outside dungeons, can change that if you wish in the "load" tab > instance type), and I have a separate one for10 & 25 man raids as my guild does loot differently between those two.
I find this setup useful on my character that no longer needs any gear from heroics and that I am just running for badges/achievements/dailies or to help others
This version is set to load during dungeon heroics/normals and will auto Greed on Greens/Blues/Epics, allowing you to ignore having to click on almost all item rolls in a 5 man dungeon run.
The two caveats I have for this WA is that 1) I have only bypassed the loot confirm popup by using Leatrix Plus addon, and using /ltp > System > Disable loot warnings, this option disables confirmation window when choosing a loot roll option or attempting to sell/mail trade able items. 2) On final bosses it auto rolls on the frost orb, and typically the blue item, but still have to manually greed/need/pass the epic item that drops. Not sure how to fix that yet for multiple BoP item drops.
Otherwise, works 90% how i want/need it to thus far and I'm happy with that. Just go into the "load" tab and set "player name/realm" to your desired characters so that it does not auto roll on other characters you may actually wish to pay attention to drops, IE leveling alts/fresher 80s that you want that heroic gear for.