Find and install add-ons to add features to Firefox

Add-ons are like apps that you install to add bells & whistles to Firefox. You can get add-ons that compare prices, check the weather, change the look of Firefox, listen to music, or even update your Facebook profile. This article covers the different types of add-ons available and how to find and install them.

What types of add-ons can I install?

There are three general types of add-ons:

  • Extensions
    Extensions add new features to Firefox or modify existing ones. There are extensions that allow you to block advertisements, download videos from websites, integrate Firefox with websites like Facebook or Twitter, and even add features from other browsers.
  • Appearance
    There are two types of appearance add-ons: complete themes, which change the look of buttons & menus, and background themes, which decorate the menu bar and tab strip with a background image.
  • Plugins
    Plugins let you add support for all kinds of Internet content. These usually include patented formats like Flash and Silverlight that are used for video, audio, online games, presentations and more. Plugins are created and distributed by other companies.

To view which add-ons you have installed:

  1. Click the menu button New Fx Menu and choose Add-ons. The Add-ons Manager tab will open.
  2. Select the Extensions, Appearance or Plugins panels to view your add-ons.

How do I find and install add-ons?

Here is an overview to get you started:

  1. At the top of the Firefox window, click on the Firefox buttonOn the menu bar, click on the Tools menuAt the top of the Firefox window, click on the Tools menu, and then click Add-ons. The Add-ons Manager tab will open. Click the menu button New Fx Menu and choose Add-ons. The Add-ons Manager tab will open.

  2. In the Add-ons Manager tab, select the Get Add-ons panel.
  3. To see more information on a Featured Add-on or Theme, click it. You can then click the green Add to Firefox button to install it.
    • You can also search for specific add-ons by using the search box at the top. You can then install any add-ons you find with the Install button.
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  4. Firefox will download the requested add-on and may ask you to confirm that you want to install it.
  5. Click Restart Now if it pops up. Your tabs will be saved and restored after the restart.

Some extensions place a button in the toolbar after installation. You can remove those or move them into the menu if you want - see Customize Firefox controls, buttons and toolbars.

If you want to uninstall an add-on, see Disable or remove Add-ons.

Troubleshooting add-ons

For information on troubleshooting problems with extensions, plugins or themes, see the articles below.

Problems with installing or uninstalling add-ons

Problems caused by add-ons

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