A List of Stable, Non-Conficting and Essential addons

by ChessWriter

705 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,934 reviews

20,320,933 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Video DownloadHelper by mig

Rated 4 out of 5 stars 5,548 reviews

4,651,823 users

The easy way to download and convert Web videos from hundreds of YouTube-like sites.

anonymoX by anonymoX GmbH

Rated 4 out of 5 stars 177 reviews

530,347 users

Easy anonymous web browsing.
– Change your IP-Address and country
– Visit blocked or censored websites.
– Delete cookies, show your public ip, and more

We provide the proxy servers, no external proxies or other programs required

Flash Video Downloader - YouTube HD Download [4K] by pos1t1ve

Rated 4 out of 5 stars 544 reviews

1,118,419 users

Flash Video Downloader helps you to download any video (flv, mp4, HD) from YouTube-like, Facebook, Break, Metacafe and more in one click. You can download mp3, music (iPod), avi and more. Download Flash games. Download Helper. 4K download

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 5 out of 5 stars 1,599 reviews

1,342,316 users

The first and only download manager/accelerator built inside Firefox!

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 956 reviews

1,230,597 users

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

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,497 reviews

2,173,479 users

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.

FlashGot Mass Downloader by Giorgio Maone

Rated 5 out of 5 stars 494 reviews

926,490 users

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.

Google Translator for Firefox by nobzol

Rated 4 out of 5 stars 311 reviews

754,077 users

With this addon you can translate any text to your own language with one click or hot-key. You can either translate the selected text, this way the translated text will overwrite the original selected text, or you can translate the full page too.

iMacros for Firefox by iMacros

Rated 4 out of 5 stars 378 reviews

396,444 users

Automate Firefox. Record and replay repetitious work. If you love the Firefox web browser, but are tired of repetitive tasks like visiting the same sites every days, filling out forms, and remembering passwords, then iMacros for Firefox is the soluti...

LastPass Password Manager by LastPass, Andrew Zitnay

Rated 4 out of 5 stars 1,227 reviews

523,578 users

LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.

Stylish by Jason Barnabe

Rated 4 out of 5 stars 746 reviews

666,317 users

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 249 reviews

365,449 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,530 reviews

900,950 users

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.
Collector's Note An absolutely indispensable addon. A few words of note : (A). You can also use Tab Mix Plus's Session manager instead of the separate addon 'Session Manager'. But the advantages of Session manager are 1. More powerful, Stores more sessions 2. If you also have the addon "Session Manager Export tool" then you can export and save your sessions. (B) Tab Mix Plus can be made even more powerful if you use it alongwith two more addons - Multiple Tab Handler and Tab Groups Manager. ............................... I am using Firefox 18 at the time of writing. And these days I prefer Tab Utilities over Tab Mix Plus because it allows me to stack Tabs like Opera. Tab Mix Plus so far does not have this function. Also I use the addon Tab Kit 2nd Edition which plays better with TU than with TMP. The advantages of Tab Mix Plus are that although it offers fewer functions than Tab utilities, those functions are solidly built and complete. Also most developers who make tab related addons ensure that their addons are compatible with Tab Mix Plus, so TMP works well with most other Tab related addons (except Tab Kit 2nd Edition which works with Tab Utilities better because both were developed by the same guy)

QuickJava by Doug G

Rated 5 out of 5 stars 251 reviews

260,259 users

Allows quick enable and disable of Java, Javascript, Cookies, Image Animations, Flash, Silverlight, Images, Stylesheets and Proxy from the Toolbar. This is great for increasing security or decreasing bandwidth.
Collector's Note I think this is much better than things like NoScripts. Much less cluttered, much less time wasting and much more simpler to use. The only negative - it takes space of 5 buttons on the addon bar(although the buttons are beautiful, I must say). If you want only one button to toggle all plugins, use the Pluggin toggler.
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