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You can install different types of add-ons, such as extensions to add features to Firefox and themes to change its appearance. Learn more.

Add-ons let you add bells and 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. __TOC__ = What types of add-ons can I install? = These general types of add-ons can be installed: * '''[https://addons.mozilla.org/firefox/extensions/ Extensions]'''<br>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, check your grammar and spelling, and so on. Community-created extensions can be found on [https://addons.mozilla.org/firefox/extensions/ addons.mozilla.org]. * '''[[Use themes to change the look of Firefox|Themes]]'''<br>Themes change the visual appearance of Firefox by setting a custom background image in the browser's header section and the colors used in the tab strip, address bar, menus, and so on. Firefox includes built-in themes and others created by the community can be found on [https://addons.mozilla.org/firefox/themes/ addons.mozilla.org]. For more information on built-in themes, see [[Built-in themes in Firefox - alternative to complete themes]]. * '''Plugins'''<br>Firefox automatically downloads and installs the Google Widevine CDM for watching [[Watch DRM content on Firefox|Digital Rights Management (DRM) controlled content]] and an [[Why is there an OpenH264 plugin in Firefox?|OpenH264 plugin]] for video calls. * '''[https://addons.mozilla.org/firefox/language-tools/ Dictionaries]'''<br>[[How do I use the Firefox spell checker?|Firefox can check your spelling]], but not all locales come with a dictionary installed for to licensing reasons. You can [https://addons.mozilla.org/firefox/language-tools/ find and install a dictionary] for your language. * '''[https://addons.mozilla.org/firefox/language-tools Language Packs]'''<br>Language packs change the language of Firefox's user interface. You can [[Use Firefox in another language|change languages in Firefox's settings menu]] and community-created language packs can be found on [https://addons.mozilla.org/firefox/language-tools/ addons.mozilla.org]. * '''[[Change your default search settings in Firefox|Search engines]]'''<br>Firefox comes with a number of search engines already installed. You can access them from the [[Add the Search bar to your Firefox toolbar|Search bar (if enabled)]] or directly from the address bar. If you want additional search engines, you can [[Add or remove a search engine in Firefox|install them]] on the websites directly or from [https://addons.mozilla.org/firefox/search-tools/ addons.mozilla.org].<!-- L10n note: If there is a list of recommended search modules for your region (e.g. a collection on AMO), you can link it from here. --> == Viewing and managing your installed add-ons == Most types of add-ons can be managed directly from Firefox's Add-on Manager. To access the Add-on Manager: # Click the menu button [[Image:Fx89menuButton]] and choose {menu Add-ons and themes}. The Add-ons Manager tab will open. # Select the panel for the type of add-on you wish to view or manage, such as the {menu Extensions} or {menu Themes} panel. Search engines can be viewed and managed in the [[Change your default search settings in Firefox|Search panel]] in Firefox [[T:optionsorpreferences]]. 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: # Firefox may offer [[Personalized extension recommendations|personalized recommendations]]. [[T:Open Add-ons|type=Recommendations]] # To install a recommended add-on, click the blue {button + Install Theme} or {button + Add to Firefox} button, depending on the type of add-on. At the bottom of the list of recommended add-ons, there's also a {button Find more add-ons} button you can click. It will take you to [https://addons.mozilla.org?utm_source=support.mozilla.org&utm_medium=support-article&utm_content=find-and-install-add-ons-add-features-to-firefox addons.mozilla.org] where you can search for specific add-ons. {note}'''For advanced users:''' You can also install a signed add-on from a file. When you install an extension from [https://addons.mozilla.org/ addons.mozilla.org] or a developer's website, Firefox will automatically download and install a file with a .xpi extension. If you save this file to your computer, you can later install the add-on using the gear icon [[Image:Fx91GearIcon]] in the upper-right area of the Add-ons Manager {menu Extensions} panel. Select {menu Install Add-on from file…} from the menu, then find and select the file.<!-- See also: https://support.mozilla.org/en-US/kb/unable-install-add-ons-extensions-or-themes#w_you-are-asked-to-download-the-add-on-rather-than-installing-it -->{/note} Once an extension has been installed, you can pin its icon to the toolbar for easy access. See [[Manage your extensions using the extensions button in the toolbar]] for details. = Troubleshooting add-ons = For information on troubleshooting problems with extensions or themes, see the articles below. == Problems with installing or uninstalling add-ons == * [[Unable to install add-ons or extensions]] * [[Cannot uninstall an add-on]] == Problems caused by add-ons == * [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] * [[Troubleshoot Firefox issues caused by malware]] * [[Remove a toolbar that has taken over your Firefox search or home page]] * [[Re-enable add-ons that were disabled when updating Firefox]] * [[Why does Mozilla disable some add-ons from running in Firefox?]] * [[Add-on signing in Firefox]]