Killer Extensions ++

by Phil D.

66 Add-ons in this Collection

Video DownloadHelper by mig

Rated 4 out of 5 stars 4,151 reviews

6,239,103 users

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

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 854 reviews

1,786,655 users

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

FlashGot Mass Downloader by Giorgio Maone

Rated 5 out of 5 stars 424 reviews

1,354,732 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.

Element Hiding Helper for Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 362 reviews

987,037 users

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

Flashblock by Philip Chee

Rated 4 out of 5 stars 869 reviews

1,047,045 users

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...

iMacros for Firefox by iOpus

Rated 4 out of 5 stars 335 reviews

299,105 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...

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,129 reviews

1,179,860 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.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 195 reviews

448,434 users

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

Xmarks Sync by Xmarks Inc.

Rated 4 out of 5 stars 2,319 reviews

485,055 users

Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 833 reviews

778,023 users

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

Check out my new project, FireSSH!

IE Tab V2 (Enhanced IE Tab) by ietab.net

Rated 4 out of 5 stars 376 reviews

713,667 users

Note: If you are encountering the Connecting... problem see instructions below.

The updated, fully supported IE Tab. Embed IE in a Firefox tab. IE Tab Features: FF 4+ support, IE 7-9 compatibility modes, old IE Tab settings import.

Personas Plus by Mozilla

Rated 3 out of 5 stars 876 reviews

775,099 users

Personas are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite Personas.

Webpage Screenshot in Firefox (♥♥♥♥♥) by susbox

Rated 5 out of 5 stars 374 reviews

282,733 users

FireShot Webpage Screenshots captures webpage screenshot entirely (see demo: http://bit.ly/RlBQMV)

The screenshot can be quickly annotated and:

+ Uploaded
+ Saved as PDF/PNG/GIF/JPEG/BMP
+ Sent to clipboard
+ Printed
+ E-Mailed
+ Exported

BlockSite by Wips.com s.r.o.

Rated 3 out of 5 stars 445 reviews

212,374 users

BlockSite is an extension, which automagically blocks websites of your choice. Additionally, this extension will disable all hyperlinks to these websites, by just displaying the link text without the clicking functionality.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 282 reviews

304,151 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
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