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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, and add features included in other browsers, such as translators. <!-- L10n note: Optionally add a link to a translator, that is well tested for your language. --> *[[Use themes to change the look of Firefox|Themes]]<br> 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<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. * Dictionaries<br>[[How do I use the Firefox spell checker?|Firefox can check your spelling]], but not all locales come with a dictionary installed due to licensing reasons. You can [https://addons.mozilla.org/firefox/language-tools/ find and install a dictionary] for your language. (To change the language of the Firefox user interface, see the article [[Use Firefox in another language]].) *[[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 == Search engines can be viewed and managed in the [[Change your default search settings in Firefox|Search panel]] in Firefox [[T:optionsorpreferences]]. For other add-ons: # 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. 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 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 [[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} 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 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]] * [[Add-ons that cause stability or security issues are put on a blocklist]] * [[Add-on signing in Firefox]] {note}'''Note:''' Mozilla has overhauled the underlying technology for Firefox add-ons. For more information, see [[Firefox add-on technology is modernizing]].{/note}