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Extend Firefox with add-ons to add new features to it. We'll cover the different types available and how to find and install them.

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. <!-- TO LOCALIZE THE CAPTIONS FOR THIS VIDEO, SEE https://support.mozilla.org/en-US/kb/localize-a-support-video#w_localize-video-caption-files --> {for not fx48} [[Video:http://youtu.be/i4y_CeifV2s]] {/for} __TOC__ = What types of add-ons can I install? = There are three general types of add-ons: * [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 even add features from other browsers. * [[Use themes to change the look of Firefox|Appearance]]<br>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. * [[Use plugins to play audio, video, games and more|Plugins]]<br>Plugins 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.[[T:PluginSupportEOL]] To view which add-ons you have installed: # Click the menu button [[Image:New Fx Menu]] and choose {button Add-ons}. The Add-ons Manager tab will open. # Select the {menu Extensions}, {menu Appearance} or {menu Plugins} panels to view your add-ons. = How do I find and install add-ons? = {for not fx48} Here is an overview to get you started: # [[T:Open Add-ons|type=Get Add-ons]] # To see more information on a Featured Add-on or Theme, click it. You can then click the green {button 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 {button Install} button. #*;{for win}[[Image:Addon1 29 Win]][[Image:Addon2 29 Win]]{/for}{for mac}[[Image:Addon1 29 Mac]][[Image:Addon2 29 Mac]]{/for}{for linux}[[Image:Addon1 29 Lin]][[Image:Addon2 29 Lin]]{/for} # Firefox will download the requested add-on and may ask you to confirm that you want to install it. # Click {button Restart Now} if it pops up. Your tabs will be saved and restored after the restart. {/for} {for fx48} Here is an overview to get you started: # [[T:Open Add-ons|type=Get Add-ons]] # To install a featured add-on, click the grey toggle button, which will turn green. To uninstall an add-on you just installed, click the toggle button again. #; [[Image:Fx48-GetAddons]] At the bottom of the list of featured add-ons, there's a {button See more add-ons!} button you can click. It will take you to addons.mozilla.org where you can search for specific add-ons. Also, you have an option to '''install add-ons from a file'''. # Click the gear icon [[Image:gear icon]] in the upper-right area of the {menu Extensions} panel. # Select the {menu Install Add-on from file...} on the opened list. # Then, search for add-ons file (*.xpi, *.jar, *.zip) on your computer. # Select the file to install. {/for} 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 later 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 == * [[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 issues with plugins like Flash or Java to fix 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}