Find and install add-ons to add features to Firefox

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Add-ons let you 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?

You can install these 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 add features included in other browsers, such as translators.
  • Themes
    Themes can decorate the menu bar and tab strip with a background image. Firefox also includes built-in themes. For more information on built-in themes, see Built-in themes in Firefox - alternative to complete themes.
  • Plugins
    You can install the Adobe Flash plugin for video, audio, online games, and more. (Firefox automatically downloads the Google Widevine CDM for watching Digital Rights Management (DRM) controlled content and an OpenH264 plugin for video calls.)

Viewing and managing your installed add-ons

Search engines can be viewed and managed in the Search panel in Firefox OptionsPreferences . For other add-ons:

  1. Click the menu button Fx57Menu and choose Add-ons. The Add-ons Manager tab will open.
  2. Select the panel for the type of add-on you wish to view or manage, such as the Extensions, Themes or Plugins panel.

For detailed information on disabling or removing add-ons, see Disable or remove Add-ons.

How do I find and install add-ons?

Here is an overview to get you started:

  1. Firefox may offer personalized recommendations. Click the menu button Fx57menu , click Fx57Addons-icon Add-ons and select Get Add-onsRecommendations.
  2. To install a featuredrecommended add-on, click the blue + Install Theme or + Add to Firefox button, depending on the type of add-on. To uninstall an add-on you just installed, click the grey Remove button.

At the top and bottom of the list of featuredrecommended add-ons, there's also a Find more add-ons button you can click. It will take you to addons.mozilla.org where you can search for specific add-ons.

For advanced users: You can also install add-ons from a file. If you saved the installer file to your computer, (for example, an .xpi or .jar file) you can install the add-on using the gear icon gear icon in the upper-right area of the Add-on Manager Extensions panel. Select Install Add-on from file... from the menu, then find and select the file.

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.

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

Note: Mozilla has overhauled the underlying technology for Firefox add-ons. For more information, see Firefox add-on technology is modernizing.
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