1. Adblock Plus
Ever been annoyed by all those ads and banners on the internet that often take longer to download than everything else on the page? Install Adblock Plus now and get rid of them. Right-click on a banner and choose "Adblock" from the context menu - the banner won't be downloaded again. Or click Adblock Plus icon in the toolbar to see all elements of the page and block the banners. You can use filters with wildcards or even regular expressions to block complete banner factories.
Download Here
2. Colorful Tabs
The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color and makes them easy to distinguish while beautifying the overall appearance of the interface. An essential.
Download Here
3.Customize Google
CustomizeGoogle is a Firefox extension that enhance Google search results by adding extra information (like links to Yahoo, Ask.com, MSN etc) and removing unwanted information (like ads and spam). All features are optional and easily configured from the options menu.
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4.Download Statusbar
View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.
Download Here
5.DownThemAll!
The first and only download manager/accelerator built inside Firefox!
DownThemAll is all you can desire from a download manager: it features an advanced accelerator that increases speed up to 400% and it allows you to pause and resume downloads at any time!
DownThemAll is fast, reliable and easy-to-use! It lets you download all the links or images contained in a webpage and much more: you can refine your downloads by fully customizable criteria to get only what you really want!
DownThemAll is absolutely freeware and open-source. No Adware, no Spyware.
Download Here
6.Fasterfox
Performance and network tweaks for Firefox.
Fasterfox allows you to tweak many network and rendering settings such as simultaneous connections, pipelining, cache, DNS cache, and initial paint delay.
Dynamic speed increases can be obtained with the unique prefetching mechanism, which recycles idle bandwidth by silently loading and caching all of the links on the page you are browsing.
A popup blocker for popups initiated by Flash plug-ins is also included.
Download Here
7.Fission
Fission combines address bar and progress bar, making the progress bar more visible and allowing for a nice visual effect.
Please visit this extension's homepage for information and help about how to further modify the progress bar's appearance and how to make it look good for the theme(s) you use.
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8.Flashblock
Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on it.
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9.Flashgot
Download one link, selected links or all the links of a page together at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers. Supported download tools are dozens, see
FlashGot - Best Firefox Download Manager Integration - what is it? - InformAction for details. This extension offers also a Build Gallery functionality which helps to collect in a single page serial movies and images scattered on several pages, for easy and fast "download all".
Download Here
10.GreaseMonkey
Allows you to customize the way a webpage displays using small bits of JavaScript.
Hundreds of scripts, for a wide variety of poular sites, are already available at
Userscripts.org - Universal Repository.
You can write your own scripts, too. Mark Pilgrim's definitive Greasemonkey guide, diveintogreasemonkey.org will show you how.
Download Here
11.IE Tab
IE Tab - an extension from Taiwan, features: Embedding Internet Explorer in tabs of Mozilla/Firefox.
This is a great tool for web developers, since you can easily see how your webpage displayed in IE with just one click and then switch back to Firefox.
Download Here
12.Linkification
Converts text links into genuine, clickable links.
To view and set options, you can (1) use the Linkification right-click context menu, (2) right-click the status bar icon and click "Options", or (3) click Tools->Extensions, and double-click the Linkification item.
Download Here
13.Linky
Linky will increase your power to handle links.
Open/download/validate links and pictures in tabs or windows.
Download Here
14.Media Player Connectivity
Allow you to launch embed video of website in an external application with a simple click
* Replace the stream by a simple button
* Add a download icon in the status bar
* And/Or add links to right click
* Works with RealMedia, QuickTime, WindowsMedia, Playlists, Flash, background sounds, Nullsoft video, Shockwave
* Allow the use of any capable media player (with command line support)
* Support Media Metafiles (ram, rpm, wmv, wm, wma, asx, asf, ...)
* Activable per media format
* AutoPlay feature : automaticatlly start to play the first media
* Configuration wizard
* SmartPlay : automatically search and choose the best source using metafile ('+' icon) if exist
* List all media links on the webpage
* Use a sidebar for lists
* Multilingual
Download Here
15.Ook? Video Ook!
Ook? Video Ook! enables you to download embedded videos from several systems (such as YouTube, Google Video, Pornotube, Metacafe and many more).
* just one click downloading (just set a target folder on the options dialog once and then click on the status icon or the button where active).
* DownThemAll! integration for better download experience
* file renaming after video title (if you want so)
* files can be stored in a specific folder
* customizable toolbar button
* hideable status icon indicates which specific pages are supported: you can also check the About dialog to get a general idea
* send your requests for sites support or other comments directly from the extension (I'm working on the server side right now)
* new support can be added on the fly using the autoupdate feature
Download Here
16.Paste And Go 2
Paste and Go 2 lets you Paste Text and Load/Search It Immediately.
You can Paste and Go by:
* Select "Paste and Go" on context menu of URL bar
* Press the "Paste and Go" button on the tool-bar
* Keyboard Shortcuts: Accel + Shift + V (default)
You can Paste and Search by:
* Select "Paste and Search" on context menu of Search bar
* Press the "Paste and Search" button on the tool-bar
* Keyboard Shortcuts: Accel + Shift + S (default)
* Middle click on engine button
* Middle click in the drop down menu of the search engines
* Hold Accel and Shift, repeatedly press S until the engines you wanted selected, then release Accel and Shift
Download Here
17.Search Bar Autosizer
Does what its name says. It auto expands (resizes) the searchbar if needed, and shrinks it if you don't have anything typed in you'd probably want to read.
The assistant helps you to adjust the searchbar to your likings by simply resizing it with the mouse. An auto-detection guesses what you wants to achieve, making it even easier to find the right settings. It offers an option dialog for the average geek as well, of course.
And if you're finished your query, you can set it to be deleted on submit, saving space again - TabMix(Plus) compatible!
Download Here
18.User Agent Switcher
Adds a menu and a toolbar button to switch the user agent of the browser.
Download Here
19.WOT
WOT helps you avoid disingenuous Internet content by allowing you to learn from others' experiences. WOT shows you website reputations on your browser, telling you how much other users trust a website. This helps you make better decisions while browsing and avoid phishing, malware, and other types of fraud. Reputations can also be added to web search results, Gmail, Wikipedia, and other selected sites.
WOT reputations are computed mainly from user testimonies. Sharing your knowledge with others is just a click away, without ever having to leave the site. We also collect data from hundreds of other sources (including PhishTank) to quickly warn you of emerging threats. Currently, WOT knows over 11 million websites.
The WOT add-on was designed to be as noninvasive as possible and you can use it anonymously without having to register. Please visit our homepage for more information. Join us and be among the first in creating a better web!
Download Here
I use all these extensions/add ons personally and they make browsing as smooth as a hot knife through butter
19 Must Have Firefox Extensions/Add ons
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