The Best Firefox Addons

This web page lists the best Firefox addons that I came across in the past ten or so years.

These browser extensions add, remove or modify features of the browser itself, for instance interface elements, but also of websites that you may visit in Firefox.

Add-ons may add security features to Firefox, improve how your favorite site looks in the browser, may help you download files more easily, or fix annoyances of Firefox itself or of websites.

We have grouped all extensions listed here on this page into categories for easier access. Since there are that many, we have decided to separate them on different pages to improve loading times.

Group Listing

The available categories and add-ons that have been filed in them are:

1. Annoyances

  • Anti-Aliasing Tuner
  • Bookmarks Duplicate Cleaner
  • Click to Play per-element
  • CloudHole
  • Greasy Scripts
  • GUI:Config
  • KillSpinners
  • Less Spam Please
  • Noise Control
  • Remove It Permanently
  • Session Manager
  • Skipscreen
  • Yet Another Smooth Scrolling

2. Download Managers / Tweaks

  • Bazzacuda Image Saver Plus
  • Down Them All
  • Download Panel Tweaks
  • Download Sort
  • Download Statusbar

3. Interface Modifications

  • All-in-One Sidebar
  • Classic Theme Restorer
  • Cleanest Add-on Manager
  • Enhanced Steam
  • Greasemonkey
  • Menu Filter 2
  • New Tab King
  • OmniSidebar
  • Personas Plus
  • Puzzle Bards
  • Prevent Tab Overflow
  • Scriptish
  • Settings Sanity
  • Status 4-Evar
  • Stratiform
  • Stylish
  • Tab Stacking
  • Theme Font & Size Changer
  • Tile Tabs
  • Toolbar Autohide
  • Vertical Toolbar

4. Media

  • Browser View Plus
  • Media Hint
  • MediaPlayerConnectivity
  • Nextvid Stopper for YouTube
  • Popvideo
  • VLC Context Menu
  • YouTube.com player Resize

5. Productivity

  • Auto Refresh Tabs
  • CheckBoxMate
  • Customize Shortcuts
  • Evernote Clearly
  • FindBar Tweaks
  • gTranslate
  • Monitor Master
  • Multi Links
  • Multifox
  • NOverflow
  • Optimal Access
  • Pocket
  • Print Edit
  • Quickmarks
  • Readability
  • Save Text to File
  • Screengrab Fix Version
  • Tab Groups
  • Tab Mix Plus
  • Thumbnail Zoom Plus
  • Tranquility
  • Update Scanner

6. Security and Privacy

  • Adblock Plus
  • Better Privacy
  • BluHell Firewall
  • Calomel SSL Validation
  • Cookie Controller
  • Cryptocat
  • DoNotTrackMe
  • FoxyProxy Standard
  • Ghostery
  • HTTPS Everywhere
  • Hush
  • KeeFox
  • LastPass Password Manager
  • Masking Agent
  • Mozilla Lightbeam
  • NoScript Security Suite
  • Per-Tab Private browsing
  • Preferences Monitor
  • Policeman
  • Priv8
  • RequestPolicyContinued
  • Searchonymous
  • Self-Destructing Cookies
  • Safe
  • Tinfoil
  • uBlock

7. Shopping

  • Ciuvo
  • Converter
  • Invisible Hands
  • Price Blink
  • Simple Currency Converter
  • The Camelizer

8. Social Media / Sharing

  • 2-Click Like
  • AddThis
  • ChatZilla
  • Reddit Enhancement Suite
  • RSS Icon In Awesomebar
  • Social Fixer
  • Wallflower
  • X-notifier

9. Web Developer

  • Firebug
  • Fire IE
  • FireFTP
  • Modify Headers
  • SearchStatus
  • SEO Doctor
  • SEO Toolbar by Moz
  • SeoQuake SEO extension
  • SQLite Manager
  • User Agent Switcher

10. Misc Add-ons

  • about:addons-memory
  • Add to Search Bar
  • AniWeather
  • Clean Uninstall
  • Fasterfox
  • Fastestfox
  • FireGestures
  • Flagfox
  • Forecastfox Weather
  • Profilist
  • SQLite Manager
  • Tab Data
  • Unload Tabs

Annoyances

The add-ons and extensions listed in this category fix many annoyances of Firefox or websites that you visit.

Anti-Aliasing Tuner

anti-aliasing tuner

Use the extension to modify how text is displayed in Firefox. This can be useful if fonts appear blurry in the browser or otherwise distorted, or if you want them to appear cleaner in Firefox.

Review | Go-To

Bookmark Duplicate Cleaner

firefox bookmark duplicate cleaner

There is no easy way to find and delete duplicate bookmarks in Firefox. The extension Bookmark Duplicate Cleaner can scan all bookmarks of the browser automatically to find duplicate ones which you can then delete.

Review | Go-To

Click to Play per-element

click-to-play

Mozilla changed how click to play works in Firefox 24. Instead of enabling just a single element on a site, Firefox now enabled all of them at once. Click to Play per-element restores the original functionality giving you the option to enable only select elements on websites you visit.

Review | Go-To

CloudHole

one more step

CloudHole's aim is to reduce the number of CloudFlare capture pages that are presented to you when you browse the Internet using TOR or while connected to a web proxy or virtual private network.

If you have done so in the past, you know that captcha pages are displayed frequently to you while that is the case. CloudHole resuses the cookie and information to reduce the number of checks.

Review | Go-To

Greasy Scripts

userscripts-checker

The extension highlights if so-called userscripts are available for the site you are visiting. It uses the popular Grease Fork repository for that.

Review | Go-To

GUI:Config

firefox advanced settings

You can modify advanced config settings by loading about:config in Firefox, or by installing the GUI:Config extension which brings many of those preferences to the Firefox options menu.

Review | Go-To

KillSpinners

KillSpinners puts an end to web pages that load seemingly endlessly. It makes sure that the loading of sites is stopped automatically when a certain threshold is reached.

Review | Go-To

Less Spam Please

less spam please

The add-on integrates several disposable email services into Firefox, so that you can use them directly in the browser.

Review | Go-To

Noise Control

noise-control-firefox

Noise Control adds audio indicators to the tab bar in the Firefox browser.

Review | Go-To

Remove it Permanently

remove-it-permanently

Use the browser extension to remove page elements permanently from Firefox. This can be ads, annoying banners or images, Flash elements, and anything else that you do not want to see anymore on websites you visit regularly.

Review | Go-To

Session Manager

session manager

Firefox ships with its own session restore option. Sometimes, you may want greater control over it, for instance if you want to save sessions so that you can open them regardless of what you do with the web browser, and regardless when.

Review | Go-To

SkipScreen

skipscreen

SkipScreen "skips" intermediary pages when you download files on popular file hosting websites. It speeds up the downloading process as it eliminates the wait time.

No Review Yet | Go-To

Yet Another Smooth Scrolling

If scrolling is not as smooth as it can be on your end, you may want to give this extension a try as it lets you modify the browser's scrolling experience.You can use it to fine-tine Firefox's scrolling behavior.
Review | Go-To

Download Managers / Tweaks

Download manager addons improve your download experience. They may automate certain processes,let you download files in bulk, or modify where and how files are saved.

Bazzacuda Image Saver Plus

image saver

If you download images in bulk regularly, you may find the Bazzacuda Image Saver Plus extension useful for that purpose, as it can automate much of that for you.

Review | Go-To

Down Them All

downthemall

Down Them All integrates download manager capabilities into the browser. Use it to display all links, pictures or media on a page to download these files faster to your system.

Review | Go-To

Download Panel Tweaks

increase firefox download panel-count

Use the add-on to modify Firefox's new download panel. You can increase the number if items displayed by it by default for example and fix other features of the panel.

Review | Go-To

Download Sort

automatic-save-folder

The Download Sort add-on gives you better control over the browser's download behavior. You can define custom save locations based on domains or file names and extensions, among other things.

Review | Go-To

Download Statusbar

download-statusbar

Displays download progress information in the browser's status bar area.

Review | Go-To

Interface Modifications

All addons listed here modify the Firefox interface in a way. They may modify certain interface elements, add new options or features to it, or restore elements that Mozilla has removed from Firefox.

All-in-One Sidebar

all-in-one sidebar

The add-on extends Firefox's sidebar in many different ways. You can for instance place it on the left or right side of the browser window, open other sidebar items from it easily, or customize what and how it is displayed here as well.

Review | Go-To

Classic Theme Restorer

classic theme restorer

The extension enables you to undo certain interface changes that Mozilla introduced with the browser's Australis re-design.You can use it to enable the add-on bar again, display the Firefox menu button, enable small buttons, and several other features that were removed in the wake of the launch.

Review | Go-To

Cleanest Add-on Manager

firefox clean addon manager

Display more add-ons at the same time in the Firefox Add-ons Manager. The extension reduces the size of each row in the manager, and modifies other style elements to achieve that.

Review | Go-To

Enhanced Steam

enhanced steam

Enhanced Steam improves the user experience on the official Steam website. It does so in numerous ways, for instance by highlighting games you already own, pointing out DRM use, or see how much you have spent in total on Steam.

Review | Go-To

Greasemonkey

greasemonkey 1.0

Greasemonkey is one of the few extensions for Firefox that add userscript support to the browser.

Review | Go-To

Menu Filter 2

firefox menu bar

The extension provides you with the means to remove menu items from Firefox menus. This can be useful to remove items that you never use so that it is easier to identify the items that you use regularly.

Review | Go-To

New Tab King

new tab king

If you do not like Firefox's default tab page, use New Tab King to change it completely. From different background images to various interface improvements, for instance options to display the most used websites as text links and with additional usage stats.

Review | Go-To

OmniSidebar

omnisidebar

Firefox is the only browser that supports sidebars by default. You can display bookmarks or the browsing history there.The capabilities are improved when you install OmmiSidebar, as you can display other items in the sidebar as well from that moment on.

Review | Go-To

Personas Plus

personas-plus

Personas Plus extends the built-in lightweight theme functionality of Firefox. You can use the extension for example to rotate between different designs randomly, or add themes to your favorites so that you can one-click enable them in Firefox.

No Review Yet | Go-To

Puzzle Bars

puzzle bars firefox

Puzzle Bars adds new locations to the browser that users can add icons to including the location bar , a sidebar, or a bottom toolbar.

Review | Go-To

Prevent Tab Overflow

prevent-tab-overflow

Define a minimum width for tabs in Firefox to fit more or less tabs at the same time in the browser's tab bar.The extension offers a set of other features, like dimming tabs that have not been loaded or hiding the tab close button until hovered over.

No Review Yet | Go-To

Scriptish

scriptish

Scriptish is one of the extensions that you need when you want to run userscripts in Firefox. It is an alternative to Greasemonkey.

Review | Go-To

Settings Sanity

firefox javascript preferences

Adds settings and preferences back to Firefox that Mozilla has removed in recent versions of the web browser.

Review | Go-To

Status 4-Evar

status bar

Mozilla removed the status bar in Firefox 4, and this add-on has been created to bring it back. It can display status information, as well as the loading progress and download status.

Review | Go-To

Stratiform

stratiform

The extension can modify several Firefox related interface elements. Instead of having to install a theme for that, you can install this add-on to modify the colors of tabs among other things.

Review | Go-To

Stylish

stylish

Stylish adds options to Firefox to install so-called userstyles into the browser. They enable you to modify web pages using those styles.

No Review Yet | Go-To

Tab Stacking

tab stacking firefox screenshot

You can only display a certain number of tabs in Firefox's tab bar before scrolling is enabled. Tab Stacking reduces the size of some tabs to their favicon so that you can display more websites at the same time on the tab bar.

Review | Go-To

Theme Font & Size Changer

before after

There is no direct way to modify the font type or size of the Firefox interface. While you can use the userChrome.css file for that, you may prefer the direct method that the extension provides you with instead.

Review | Go-To

Tile Tabs

firefox tile tabs

Tile Tabs provides you with the means to display more than one website in a single browser tab. This is achieved by dividing the available space into different locations that you can display sites in.

Review | Go-To

Toolbar Autohide

toolbar-autohide

Use the extension to define which toolbars are to be displayed at all times, and which you want to be hidden automatically after a set delay.The benefit here is that you get more screen space for displaying websites in Firefox. It is still possible to access the bars by moving the mouse cursor over their area.

No Review Yet | Go-To

Vertical Toolbar

vertical-toolbar

The extension adds a small vertical toolbar to the side of the Firefox web browser similar to the one that the Opera 12 browser offered. You can add icons to it so that you can fast access them from there instead of the browser's main toolbar or add-on bar.

No Review Yet | Go-To

Media

Media addons for Firefox change how you consume media in the web browser. They may change how video or audio files are played, may provide you with access to sites that is blocked for you, or how you download or convert media files.

Browser View Plus

browser view plus

Use the extension to open media links directly in programs of choice. You can configure it to open videos in VLC for example, and audio files in Windows Media Player.

Review | Go-To

Media Hint

mediahint

Media Hint unblocks web services such as Hulu, Netflix or Pandora if you access them from a location they are not available in.

Review | Go-To

MediaPlayerConnectivity

mediaplayerconnectivity

The browser addon enables you to load media such as videos or audio files that you discover on the Internet in media players that you have installed on your system.

No Review Yet | Go-To

NextVid Stopper for YouTube

youtube-autoplay-recommended

Turn off autoplay on YouTube.

Review | Go-To

PopVideo

firefox popvideo

Use this extension to display videos in their own window, so that you get to better control them and do not see all the other page elements on the website they were embedded in.

Review | Go-To

VLC Context Menu

vlc context menu

VLC Context Menu adds a right-click context menu item to audio and video links that you can then launch in the media player.

No Review Yet | Go-To

Youtube.com player Resize

youtube player resize

The extension allows you to resize the video player interface on YouTube to any size you want, instead of just the three sizes that YouTube offers by default.

No Review Yet | Go-To

Productivity

Productivity add-ons for Firefox improve your workflow on the Internet. They may speed things up through automation or shortcuts, or improve how you work or experience the web in other ways.

Auto Refresh Tabs

auto refresh

Tell Firefox to reload select tabs in the browser in intervals that you specify. Can be great for busy commenting threads, eBay auctions, or webcam photos that get updated regularly.

Review | Go-To

CheckBoxMate

checkboxmate

Use the extension to check multiple check boxes on a web page in one operation. Instead of having to click on all boxes individually to check them, you can simply draw a box around them to select them all at once.

No Review Yet | Go-To

Customizable Shortcuts

customizable shortcuts

If you want to modify keyboard shortcuts in Firefox, or add new shortcuts, then you can use the excellent KeyConfig, or Customizable Shortcuts for that.

Review | Go-To

Evernote Clearly

evernote clearly addon

Evernote Clearly turns blog posts, articles and other textual information on the Internet into an easier to read form. It removes page elements from the site so that it is easier to concentrate on the contents.

Review | Go-To

FindBar Tweaks

findbar tweaks

If you use Firefox's on-page find feature regularly, you may find this add-on helpful for that. It visualizes finds on a page so that you can jump to the right away using the scrollbar. In addition to that, it can widen the search so that all tabs of the current browser window are included in the search.

Review | Go-To

gTranslate

google chrome translate

Adds options to translate some or all text on any web page using Google's Translate service. It can not only translate text, but also replace text.

Review | Go-To

Monitor Master

monitor master

If you run Firefox on a multi-monitor system you may find the Monitor Master extension helpful. It adds additional options to Firefox, for example options to move tabs to another monitor, that increase your productivity.

Review | Go-to

Multi Links

multi links

Multi Links enables you to open multiple links in one operation. You draw a rectangle around links which get opened based on the extension's configuration afterwards.

Review | Go-to

Multifox

multifox

Multifox provides you with options to sign into different accounts on the same website or service at the same time.

Review | Go-To

NOverflow

firefox visible tabs

The No Tab Overflow extension squeezes more tabs in the browser window by reducing the minimum allowed width of tabs in Firefox.

Review | Go-to

Optimal Access

optimal access

Optimal Access is a replacement for the soon to be removed Tab Groups feature of the Firefox web browser. It is not an exact copy though as it adds more options such as curation or web folders that you can work with to the concept.

Review | Go-To

Pocket

pocket

Pocket is a read it later application for Firefox. Use it to save web pages temporarily to read them at a later point in time. Supports synchronization.

No Review Yet | Go-To

Print Edit

print-edit

Print Edit for Firefox add options to the print preview dialog. Instead of having to print everything that was selected, it enables you to remove elements that you do not want included in the printout.

No Review Yet | Go-To

Quickmarks

quickmark

Quickmark speeds up the filing of bookmarks into select bookmark folders by making them available directly when you click on the bookmark icon in the Firefox browser.

Review | Go-To

Readability

Readability improves the readability of websites by removing unnecessary page elements and changing the page's font type, sizes, and background and foreground colors.

Review | Go-To

Save Text to File

save highlighted text

Use the extension to save any text that you have highlighted in Firefox to a text document on the local system. It speeds up the saving of information to the local system.

Review | Go-To

Screengrab (fix version)

screengrab

Screengrab enables you to take a screenshot of any web page that is open in the Firefox web browser. You can save the screenshot locally or remotely, as the addon offers both options.

No Review Yet | Go-To

Tab Groups

firefox tab groups

Tab Groups is an exact replica of Firefox's built-in Tab Groups feature. Mozilla will remove the feature from Firefox and the add-on ensures that you can still make use of it to manage tabs better.

Review | Go-To

Tab Mix Plus

tab mix plus links

Tab Mix Plus extends Firefox's tabbed browsing functionality. It modifies how and where tabs are loaded, which buttons are displayed on the tab bar, where the tab bar is being displayed, and dozens of other tab-related features.

Review | Go-To

Thumbnail Zoom Plus

image zoom

Lets you hover over images to display a larger version of them on the screen without clicking. Works with many sites and image hosting services.

Review | Go-To

Tranquility

The extension improves the readability of websites by removing most elements on it that are not needed to read the article. This includes most sidebar and header elements among other things.

Review | Go-To

Update Scanner

monitor websites

Update Scanner monitors web pages for changes, and will inform you when they occur. You control the frequency of checks, and also what constitutes as a change and what not.

Review | Go-To

Security and Privacy Addons

Security add-ons for the Firefox web browser. These add-ons either add security-related options and features to Firefox, or modify existing ones.

Adblock Plus

adblock plus add site to whitelist

Adblock Plus is without doubt the most popular ad-blocking extension for Firefox. While it is controversial due to its "acceptable ads" policy, it is used by millions of users on a daily basis. It is a subscription based blocker, which means that you can load additional lists into it -- it ships with one enabled by default that takes care of most advertisement -- so that you can also block annoyances on Facebook, YouTube and other popular sites.

Review | Go-To

BetterPrivacy

better-privacy

BetterPrivacy improves the handling of other forms of cookies on the system, especially Flash Cookies that browsers tend to ignore for the most part. You can configure the extension to delete those cookies on start or exit, and manage all of them from the options menu as well.

No Review Yet | Go-To

Bluhell Firewall

hellboy firewall adblocker

The name of the extension should not confuse you. It is an ad-blocker that works very well and is lightweight when you compare it to popular alternatives such as Adblock Plus.

Review | Go-To

Calomel SSL Validation

ssl validation

This add-on computes a security score for each secure connection that you make in Firefox. The score is visualized by an icon in the main browser toolbar, and a detailed overview when you click on it.In addition to that, it lets you pick cipher restrictions to prevent "too-weak" ciphers, and fix other browser annoyances and issues.

Review | Go-To

Cookie Controller

firefox cookies permission

Get direct control over cookie permissions in Firefox. You can use it to configure custom cookie rules for individual websites among other things.

Review | Go-To

Cryptocat

cryptocat

Cryptocat adds encrypted private chat options to Firefox. Use it to communicate with other users in privacy.

Review | Go-To

DoNotTrackMe

donotrackme

The Firefox add-on blocks hundreds of tracking companies from tracking your movement on the Internet.

No Review Yet | Go-To

FoxyProxy Standard

foxy-proxy

FoxyProxy Standard enables you to change the browser's proxy configuration based on the locations you visit in it. You can for instance use a different proxy for localhost requests than you use for requests to work servers.

No Review Yet | Go-To

Ghostery

ghostery 6.0

Ghostery visualizes connections that your browser makes when you connect to websites. It displays connections that are not that visual usually, including web tracking related ones so that you know which sites track you and which do not.

No Review Yet | Go-To

HTTPS Everywhere

https-everywhere

HTTPS Everywhere can force secure connections on websites that allow it but do not enforce those connections automatically.Review | Go-To

Hush

private-browsing-bookmark-passwords

Hush adds private browsing mode bookmarking to Firefox.Create password protected bookmarks that are only available in private browsing mode.

Review | Go-To

KeeFox

keefox

Users of the popular password manager KeePass can use the KeeFox extension to integrate their password database in Firefox.

No Review Yet |Go-To

LastPass Password Manager

lastpass vault

One of the most popular online password manager available. This Firefox extension syncs your passwords with the online service, and makes them available in the browser comfortably.

Review |Go-To

Masking Agent

web browser information leak

Whenever you connect to an Internet service, you send so called header information to it. These header information contain the user-agent among other things, which may reveal information about your browser, the operating system, and other information about you.

Review | Go-To

Mozilla Lightbeam

mozilla lightbeam

Mozilla Lightbeam highlights the connections that websites make when you open them in the browser.In addition to that, it also links servers so that you can see connections between all the sites you have visited in Firefox.

Read More | Go-To

NoScript Security Suite

noscript tips

Considered by many the best web browser security add-on ever created.The browser extension blocks all scripts from running on websites by default, offers other security related features that you can make use of, and lets you whitelist trusted sites so that scripts can be run on them automatically no matter what.

Read More | Go-To

Per-Tab private browsing

firefox per-tab private browsing

Firefox supports only windowed private browsing modes by default. If you want to enable private browsing for individual tabs in a regular browser window, you need to use this add-on for that.

Read More | Go-To

Preferences Monitor

preferences monitor

The extension monitors changes made to Firefox's preferences -- including those only available on about:config -- and will even block some that are not authorized.The latest version of it includes a clean-up module that you can use to delete custom configurations, for instance left-overs by extensions.

Read More | Go-To

Policeman

policeman firefox addon

The add-on allows you to create temporary or permanent rules that control which contents are loaded or blocked when you connect to sites on the

Read More | Go-To

Priv8

firefox-sandbox-priv8

The Priv8 add-on for Firefox adds options to Firefox to sandbox tabs to run them separately from other tabs and the browser.

Read More | Go-To

RequestPolicyContinued

request policy

RequestPolicy puts you in full control over cross-site requests that websites want to make when you connect to them. This may block ad scripts, tracking cookies and also cross-site request forgeries and other attacks.

Read More | Go-To

Safe

safe ssl firefox

The extension highlights secure connections with colors in the tab bar and by painting a small border around the active page. This is done to add visualization to the fact that you are connected via SSL.

Review | Go-To

Searchonymous

google anonymous search

The extension modifies Google cookies in a way that you are no longer tracked when you use Google Search. Even better, it keeps you signed in to the account at the same time, so that you can still access other Google services without having to sign in again.

Review | Go-To

Self-Destructing Cookies

removed cookies

Use the extension to delete cookies automatically once you leave a website. This takes care of most tracking related cookies as well as other cookies that websites set when you visit them. You can add sites to a whitelist to preserve their cookies.

Review | Go-To

Tinfoil

Tinfoil modifies privacy settings in Firefox. It ships with an option to set them aggressive or to set them manually.

Review | Go-To

uBlock

ublock

uBlock is a popular lightweight ad-blocker for Firefox.

Review | Go-To

Shopping

Shopping related extensions that display coupons, improve the shopping experience in other ways, or display price comparison options so that you can be sure that you get the best offer.

Ciuvo

ciuvo price comparison

Ciuvo notices when you are on shopping sites it supports and will display offers for the products that you are browsing so that you do not miss out on better offers.

Review | Go-To

Converter

currency conversion

The browser extension can convert currencies on shopping websites for you, which is handy if you shop on non-local sites. It can also convert units which may also come in handy.

Review | Go-To

Invisible Hand

The Invisible Hand extension for Firefox displays price comparison information directly in Firefox when you visit shopping sites such as Amazon.

Review | Go-To

Price Blink

godaddy coupons

PriceBlink is an automated coupon search engine for Firefox and other web browsers that displays available coupons -- those in the service's database -- to you while you browse those websites.

Review | Go-To

Simple Currency Converter

simple currency converter

The Firefox add-on will convert all price information to a currency that you select in the extension's preferences.

Review | Go-To

The Camelizer

The Camelizer offers access to price history information and options to watch product pages on Amazon, Best Buy or Newegg.

Review | Go-To

Social Media / Sharing

All browser extensions that modify how you work with social media and sharing sites are listed here.

2-click Like

2-click like

Most sites load social media buttons automatically by default, which always reports back to the site they link to. If you do not like that, use this add-on to block them from being loaded automatically.

Review | Go-To

AddThis

addthis

The AddThis extension adds sharing buttons directly to Firefox, so that you can share web pages that you visit to social media sites, or by other means such as email.

No Review Yet | Go-To

ChatZilla

chatzilla

Chatzilla is a full-blown IRC client extension for Firefox. You can use it to connect IRC servers.Review | Go-To

Reddit Enhancement Suite

reddit enhancement suite

Reddit can be a great website, depending on what your interests are. I'm using it on a daily basis and like the discussions in the groups that I have a subscription for.The Reddit Enhancement Suite extension adds options and features to Reddit. This includes modifications to the user interface, filtering options, or options to ignore users.

Review | Go-To

RSS Icon in Awesomebar

rss feed icon

Previous versions of Firefox displayed an RSS icon into the address bar to indicate that it supported RSS. This extension adds the RSS icon back to the address bar.

No Review Yet | Go-To

Social Fixer

social fixer

Social Fixer improves your Facebook experience and lets you remove annoyances on the site. It enables you to hide parts that you do not like, change what is displayed to you, and more.

Review | Go-To

Wallflower

block facebook users

Social Fixer improves your Facebook experience and lets you remove annoyances on the site. It enables you to hide parts that you do not like, change what is displayed to you, and more.

Review | Go-To

X-notifier (for Gmail, Hotmail, Yahoo, AOL)

X-Notifier adds notification options for various web mail and social services. It supports Facebook, Twitter, Gmail, Yahoo and generic Pop3 or Imap accounts.

No Review Yet | Go-To

Web Developer

Firebug

firebug 2.0

Firefox ships with its own set of developer tools and while that is a great feature, Firebug has more to offer than that which makes it a preferred add-on for web developers using the browser.

Review | Go-To

Fire IE

fire-ie

Fire IE embeds the Internet Explorer engine in Firefox. This has been designed mainly for two purposes: access IE-exclusive sites in Firefox, and provide web developers with the means to test websites in Internet Explorer.

No Review Yet | Go-To

FireFTP

firefox ftp client

You can integrate a fully working FTP client into Firefox. While it is usually better to use a program like winSCP for that, it may work out for you as well, especially if you are not allowed to install desktop software on your work PC.

Review | Go-To

Modify Headers

Modify Headers provides you with the tools to add, replace or filter HTTP request headers. It is excellent for web development and other testing related tasks.

No Review Yet | Go-To

SearchStatus

search-status

SearchStatus displays a website's Pagerank, Alexa rank and Compete rank in a toolbar in Firefox. It makes available research tools as well, for instance to highlight Nofollow links, create a link report, show the page's keyword density or the robots.txt file.

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SEO Doctor

seo score

SEO Doctor is a diagnosis extension for Firefox that webmasters can use to find problems and issues in regards to SEO on their websites. It can visualize the link structure and page rank flow on websites, detect pages that are not indexable by search engines, or point at issues that may reduce the visibility in search engines.

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SEO Toolbar by Moz

seo toolbar by moz

A toolbar with relevant information, a site's page authority and domain authority are displayed directly for each website you visit in Firefox. Here you can also access various SEO-related tools of which the majority require a Moz account.Some don't on the other hand. You can run a basic Page Elements, Page Attributes or Link Data check for example, or change the browser's user agent right from the toolbar.

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SEOQuake SEO extension

seoquake

SEOQuake offers two different tools that make it attractive to SEOs and webmasters. The first displays a toolbar on pages that highlights various metrics, like the site's Alexa rank, Google Pagerank, or pages indexed in the three search engines Google, Yahoo and Bing.The second part displays similar metrics in the search results. What makes SEOQuake interesting, among other things, is that you can customize what it displays to you.

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SQLite Manager

You can use the extension to manage any SQLite database from your computer.

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User Agent Switcher

Navigate through the menu

Sometimes, it may be necessary to use a different user agent. This is development related most of the time, for instance to check if different user agents are redirected to the correct version of a website. At other times, it may be to protect privacy, or to access information that are only available to certain user agents.

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Misc Addons

All addons that do not fit into any of the other categories are listed here.

about:addons-memory

firefox addons memory usage

The extension displays the memory usage of all installed Firefox add-ons.

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Add to Search Bar

add to search

This add-on provides you with the easiest way to add any search form that you encounter on the Internet to Firefox's list of supported search engines.

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AniWeather

weather conditions

The extension displays weather information for select locations directly in Firefox, so that you do not need to visit weather websites for that.

Clean Uninstall

clean uninstall

Clean Uninstall monitors Firefox add-on uninstallations to suggest leftover preferences that you may want to remove from the browser.

The removal of addons leaves traces behind sometimes, and the extension takes care of them.

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Fasterfox

fasterfox

You can use FasterFox to tweak the browser's networking and performance settings. It can be used to increase the number of simultaneous requests the browser can make for example.

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FastestFox

fastestfox options

FastestFox improves Firefox in many different ways. From improving downloads and search, automatic loading of the next page, to looking up information quickly on Wikipedia or other sites.

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FireGestures

firegestures

FireGestures adds gesture support to the Firefox web browser. You can use the extension to add gestures to Firefox to execute commands or features.

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Flagfox

Flagfox displays the country a website is hosted in. This is indicated by a flag displayed by the extension.

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Forecastfox Weather

forecastfox

Forecastfox Weather displays weather information in the Firefox web browser.

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Profilist

firefox profilist profile manager extension

Profilist adds profile management right into Firefox so that you can switch between profiles elegantly.

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Tab Data

tabdata

Tab Data displays in each tab how much memory it is using.

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Unload Tabs

unload tabs

The more tabs you have open, the more memory is being used for that. If your system is running low on memory because of that, use this add-on to unload tabs and free up memory.

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Summary
Article Name
The best add-ons for the Firefox web browser
Description
A list of great extensions for Firefox sorted into categories such as security & privacy, annoyances or downloads.
Author
Publisher
Ghacks Technology News
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