Top 40 Firefox Extensions or Add-ons

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40 Firefox Extensions: Firefox is one of the best browsers at this time which is being used by thousands of peopleheir default browser. one of the great perks of Firefox is that there are tons of extensions present that enhance the user experience. These extensions are either used for time saving, quick browsing, and for best user experience. Basically Firefox extensions are small add-ons that add new functionality to Mozilla, which makes it more popular among the users. Today on internet roughly 30% of the users are using Firefox Extensions, which is next to IE. There are a lot of extensions present on the internet but here i am going to show the best collection of Firefox extension which on my experience, are very handy to use it in our daily surfing.

Video Download Helper Firefox Extension

The Download Helper gives you an easy way to download and convert Web videos from hundreds of YouTube-like sites. This works also for audio and picture galleries.

No Script

The best security you can get in a web browser. Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Adblock Plus

Annoyed by adverts? Troubled by tracking? Bothered by banners? Install Adblock Plus now to regain control of the internet and change the way that you view the web.


Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.

Greasemonkey Firefox Extensions

Customize the way a web page displays or behaves, by using small bits of JavaScript.

Personas Plus

Free, easy-to-install “skins” for Firefox Extensions. Choose from over 180,000 cool designs, including art from Harry Potter and Bob Marley. Join over 8 million people from around the world who are asking themselves: “What Will My Browser Wear Today?”


3D in your browser! FoxTab brings innovative 3D functionality to your Firefox.

Easy You Tube Video Downloader Firefox Extensions

Easiest You tube video downloader ever, single click non-intrusive direct download buttons for FLV, 3GP, MP3, MP4, 720p HD and 1080p Full-HD qualities.

Download Statusbar Firefox Extensions

View and manage downloads from a tidy status bar without the download window getting in the way of your web browsing.

I’m Translator

Online Translator performs real-time translation for Albanian, Arabic, Bulgarian, Catalan, Chinese (Simp.), Chinese (trad.), Croatian, Czech, Danish, Dutch, English, Estonian, Filipino, Finnish, French, Galician, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Latvian, Lithuanian, Maltese, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Ukrainian, Vietnamese languages and their combinations.

Web of Trust – Safe Browsing Tool

Firefox Extensions: Web of Trust is the leading website reputation rating tool and one of Mozilla’s most popular add-ons. Our safe surfing tool uses an intuitive traffic-light style rating system to help you see which websites are trusted when you search, surf and shop online.


User styles are themes for web sites. User styles empower your browsing experience by letting you customize web sites. Take out irrelevant content, change colors, or completely redesign the entire site. You can even use user styles as themes on the interface of Firefox, Thunderbird, and SeaMonkey themselves.

Xmarks Sync

Xmarks is the #1 bookmarking add-on. It takes only a moment to get up and running with Xmarks. After you install the add-on, click on the notification to set up Xmarks and start backing up and synchronizing your bookmarks. Install Xmarks on each computer you use, and it seamlessly integrates with your web browser and keeps your bookmarks safely backed up and in sync

Ant Video Downloader and Player

With the Video Downloader, you can download video from Youtube or any other streaming site. Rare are the sites you will not be able to download from. We have integrated a flash video player too, so that you can play your files immediately.

Web Developer

The Web Developer extension adds various web developer tools to a browser.

Speed Dial

With Speed Dial, you can easily access your most used websites. To show the Speed Dial tab, use the Speed Dial button (which can be added to the toolbar), or enter “chrome://speeddial/content” in your location bar.

Firefox Sync

Free browser add-on that lets you stay in sync with your Firefox. Access your history, passwords, bookmarks and even open tabs across all your devices.

Foxy Proxy Standard

Foxy Proxy is an advanced proxy management tool that completely replaces Firefox’s limited proxying capabilities. It offers more features than Switch Proxy, Proxy Button, Quick Proxy, xyz proxy, Proxy Tex, Tor Button, etc.

Fire FTP

Fire FTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers

Tab Mix Plus

Tab Mix Plus enhances Firefox’s tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager with crash recovery that can save and restore combination of opened tabs and windows.

Fastest Fox – Browse Faster

Save time by speeding up repetitive tasks. Get faster, parallelized downloads, see definitions, auto-load the next page, improve searching, and more. Fastest Fox will dramatically enhance your productivity!

Flash Video Downloader (You Tube Downloader)

Flash Video Downloader helps you to download flash video (.flv) from You Tube, Daily motion, and other 200+ video sharing websites in one click. You can download, mp4 (iPod), avi and other media formats. Flash games download available.


The Cooliris 3D Wall — The fastest and most stunning way to browse photos and videos from the Web or your desktop. Effortlessly scroll an infinite “3D Wall” of content from Facebook, Google, YouTube, Flickr, and more. Even watch TV shows & movies.


With one click, AddThis enables you to instantly share and bookmark web pages, blogs, news, photos, videos, and any other content to the most popular destinations. And it’s free!


Firefox Extensions: Screengrab! saves webpages as images, It will capture what you can see in the window—the entire page, just a selection, a particular frame, basically it saves webpages as images – either to a file or to the clipboard. It captures Flash too!

Cool Previews

Browse faster — Preview links and images without leaving your current page or tab. Just mouse over any link, and a separate preview window appears to show you the content. (TIP: Mouse over subsequent links while the preview window is still open!)

iacros for Firefox

i Mros was designed to automate the most repetitious tasks on the web. If there’s an activity you have to do repeatedly, just record it in i Macros. The next time you need to do it, the entire macro will run at the click of a button! With i Macros, you can quickly and easily fill out web forms, remember passwords, create a web mail notifier, download information from other sites, scrape the Web (get data from multiple sites), and more

PDF Download

Use PDF Download to do whatever you like with PDF files on the Web. Regain control and eliminate browser problems, view PDFs directly in Firefox as HTML, and use the all-new Web-to-PDF toolbar to save and share Web pages as high-quality PDF files.

Element Hiding Helper for Adblock Plus

You simply select the element you want to hide and then choose which attributes of this element should be taken into account when hiding it in the future. The element hiding rule is generated and added automatically.

YouTube to MP3

Adds links to convert and download Youtube, MyVideo, Clipfish, Sevenload, Dailymotion, MySpace videos as MP3 files. This addon uses the free service of

Similar Web

The easiest way to find the best websites on the Internet! As you browse the internet, find the most interesting related sites on the web by similarity and category and get the latest articles and buzz on every website you visit.

Stumble Upon

Stumble Upon helps you discover great websites that match your interests. Simply click the Stumble button and see the best websites. There are over 500 topics to choose from, and, the more you use it, the better your recommendations become!

Forecast fox Weather

Get international weather forecasts from and display them in any toolbar or status bar with this highly customizable and unobtrusive extension.

Bit Defender Quick Scan

The quickest way to find out if your computer is infected! BitDefender QuickScan is a very fast antivirus scanner, able to determine in a matter of seconds (up to 1-2 minutes on first-time scans) if a system is infected with malware.

Read It Later

Save pages to read later with just one click. When you have time, access your reading list from any computer or phone, even without an internet connection

Addon Fox

Automatically install the best Firefox addons! Includes over one hundred hand-picked addons from the following categories: Customization, Downloads, Fun, Languages, Media, Programming, Security, Privacy, Social, and Visual. Easily choose which addons you want and get them installed all at once.

Google Shortcuts

Display all Google services as buttons or as a space-saving dropdown menu next to your address bar. Reach services like Gmail, Google reader, Google maps, Google calendar, and many more in a single click from your browser

Image Zoom

Easily zoom in, zoom out, fit image to screen or set custom zoom on individual images within a web page. All this can be done by using the context menu or a combination of mouse buttons and scroll wheel. Handy to see the finer details of smaller pics or to make very large pics fit within your screen.

1-Click You Tube Video Download

You Tube download in a single click.
Download You Tube videos in FLV, 3GP and MP4 (both High Definition and iPod compatible High-Quality).
The simplest You Tube Video Downloader for all You Tube Flash sites, period.

Fire Download

The Fire Download extension for Firefox and Wyzo lets you manage and accelerate your web downloads up to 10x faster! With Fire Download, download acceleration is seamlessly displayed within the downloads window. Try the ultimate download accelerator!

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