Automated Quest Mods

Blitz 6.0.2

Blitz is a small addon which can automatically accept and deliver daily and repeatable quests: it allows the user to select which quests he wants to automate and by-passes all the gossip process for them, much alike the Auto Loot feature. Blitz does not come with a list of the repeatable and daily quests available ingame. Instead, it will build its database as you use it: repeatable quests are detected soon as you talk to the quest giver, dailies are detected when they get to your quest log.
Curse

Quick Quest 6.0.2

A quest automization add-on. Features: Automatically pick up any quest, Automatically deliver any quest, Automatically use items that start quests, Automatically skip gossip if there is just one option, Highlights reward worth most at vendor, Works with the auto-quest system presented in Cataclysm, Alt-click in questlog to share quest, Ctrl-click in questlog to abandon quest, Temporarily disable by holding down the shift key.
WoWInterface, Curse

Sick Of Clicking Dailies 6.0.2

Sick of Clicking Dailies is an addon designed to make picking up daily quests and turning them in easier and more streamlined when you quest in bulk. This addon simply skips though all the gossip text when interacting wtih the NPC giving the quest. It also can automatically select a quest reward for the ones that have them, you can always leave it on none and the dialouge will stop there.
Curse

Quest Guides/Helpers

Carbonite

CARBONITE® is a multi feature addon developed by game industry veterans to improve and enhance the game playing experience of World of Warcraft.

Map - The Carbonite map gives you all the information you need in one easy to use and flexible Google like map. Move, size or zoom it the way you like.

Quest - Blaze through quests at lightning speed and level faster than you ever thought possible. Our extensive quest database lists the location of quest givers, objectives and turn-ins. Simply click any objective from your quest list and Carbonite will show you where to go. No more wasted time bouncing back and forth between a web browser and the game.

Gather - All mining and herb picking is tracked and can be shown on map.
WoWInterface

QuestHelperLite

QuestHelperLite is an unofficial branch of QuestHelper aimed at providing the core subset of features in a slimmed down lighter version. Although some of the code and art assets of QuestHelper have been utilized, QuestHelperLite has been rewritten from the ground up and is in no other way affiliated with QuestHelper and those who have worked on it in the past.
Curse

Tracker Tweaks

BetterQuest

Better quest log and tracker. Adds level and marks daily quests in the quest log. Has mouse over quest information in the tracker. Has filters for viewing quests in the tracker including only showing daily quests.
Curse

Moncai's Quest Tracker

Current features: Track as many quests as you like, Track quests that do not have objectives, Persists which quests you are tracking between sessions, If you quest with someone else who has this tracker you can track their progress, Tracker shows levels/colors is more compact but still stays true to the original by Blizzard, Works with QuestHelper 1.0.x reflecting the order in which to do the quests, Shift-click a header in the Questlog to toggle the watches for all quests under that header.
Curse

MonkeyQuest 6.0.2

The MonkeyQuest AddOn for World of WarCraft displays quests and their objectives in a nice drag able frame in a very customizable way.
Curse

rObjectiveTrackerMover 6.0.2

Small mod to make the header of the QuestWatchFrame dragable. Lets you move the Blizzard QuestWatchFrame around.
WoWInterface

Misc Quest Mods

AutoEquipQuestItem

Adds a button to the quest completion interface which allows you to auto equip the selected quest Item after completion.
WoWInterface

AutoTurnIn 6.0.2

The AutoTurnIn addon can handle accepting and turning in completed quests and choosing rewards. It can decide which reward to select by specifying options and if no suitable item is offered, the highest value one may be looted. Afterwards, it can also equip the chosen reward. Complete automated quest acceptance and completion. May handle just daily quests or any others you find in your adventures..
WoWInterface, Curse

Jobs'a'Goodn

After a hards day questin' this mod will give a little peon soundbite when you complete a quest or an objective.
WoWInterface
Similar Addon: QuestSounds

Levelland 6.0.2

Shows the level of quests on the quest log, quest watch, gossip window, world map and quest links.
Curse

LightHeaded 6.0.2

Displays quest comments from WoWHead in game. Using this mod is simple, if you use any default quest log mod, just open your quest log. The data will be loaded automatically, and quest details will be displayed for the selected quest.
WoWInterface

OneChoice

OneChoice tries to help you reduce quest reward choices down to, ideally, one choice. Blizzard's quest UI marks items your character can't use in red so you know they're unusable. For classes that can use multiple types of armor this leads to a lot of choices, but your Mail wearing Warrior or Plate wearing Death Knight probably won't be interested in Cloth armor. So OneChoice marks all armor (except relics, rings, trinkets, necklaces and cloaks) that doesn't match your character's preferred armor type red as well. In addition to this OneChoice places a gold MV below the name of the item that vendors for the highest price. In cases where multiple items tie for this honor, the first one found ends up being marked. Also compares the iLevel of the item being offered and the one you have equipped and displays the difference on items that you can use.
Curse

Player XP Bar 6.0.2

This addon adds a little XP Bar under your portrait. XP is shown in percentage, you see when you have rested XP (show "(+xxx)" in the bar) and the bar has the same colors as the original XP bar (purple for normal xp and blue for rested xp). When you rollover the bar, you see details about your XP and XP to go (numeric & percent values).
WoWInterface, Curse

Quecho 6.0.2

Quecho is a simple addon design with leveling duos in mind. It helps you keep track of your partner's quest progress. Both players must run Quecho for it to work. Players in your party not running Quecho will not be bothered with your quest info. Quecho provides a few basic features: Chatframe notifications when your partner accepts, turns in, or abandons a quest; A second "quest watch" frame that shows your partner's progress on curent quest objectives next to the default quest watch frame; Automatic exchange of "Quest item: 2/200" messages as quests are completed. There is no config, if enabled Quecho will send addon messages, and display any it receives. Messages have a 5 minute timeout, and are automatically removed after that expires.
github, WoWInterface, Curse

Quel'evel

Adds quest levels to your quest log, the quest tracker, and quest links in chat.
WoWInterface, Curse, github

QuestCompletist

Enables you to see what quests you have completed, and what ones you still have to do. Supports server query, allowing you to query the blizzard server for all quests you have completed in the past.
Curse

QuestGuru 6.0.2

QuestGuru is a Quest Log replacement that includes a Quest History, showing all quests that have been completed since installing QuestGuru. It uses a side-by-side quest log format to show you more quest titles than the built-in quest log.
WoWInterface, Curse

XPBarNone 6.0.2

Lightweight XP bar with a nice set of features. You can easily switch the bar to watch factions.
Curse