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If you want a quick answer, I wholeheartedly recommend Ajour. There are plenty of amazing guides and databases you can use to find the best addon manager for you. A great app also helps ensure your addons stay updated with the latest features and fixes, especially important when something in the to-be-launched expansion (or any upcoming Blizzard update) breaks your favourite third-party helpers. You can certainly install addons manually, but it’s a thousand times easier to use an app. You’ll want to take a moment to grab an addon manager to help you find, install, and update addons.
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Screenshot: David Murphy Step one: Install a great addon manager
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