Killer Extensions ++

by Phil D.

62 Add-ons in this Collection

Video DownloadHelper by mig

Rated 4 out of 5 stars 8,054 reviews

4,802,624 users

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

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 1,036 reviews

1,186,897 users

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

iMacros for Firefox by Ipswitch, Inc.

Rated 4 out of 5 stars 456 reviews

912,953 users

Automate Firefox. Record and replay repetitive tasks. If you're tired of manually visiting the same sites, filling out forms, downloading files and extracting data, then iMacros is for you! Save time, effort and money with iMacros browser automation!

FlashGot Mass Downloader by Giorgio Maone

Rated 5 out of 5 stars 549 reviews

747,592 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.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 273 reviews

334,277 users

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

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

Rated 4 out of 5 stars 452 reviews

546,506 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.

Full Web Page Screenshots (♥♥♥♥♥) by susbox

FireShot makes full web page screenshots. Demo: http://bit.ly/RlBQMV

Screenshots can be quickly captured and:

― Saved as Image or PDF
― Sent to clipboard
― Printed
― Annotated *
― Uploaded *
― E-Mailed *

* OS Windows only

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,646 reviews

775,128 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.

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 993 reviews

452,872 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!

Element Hiding Helper for Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 459 reviews

540,697 users

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

IE Tab by PCMan, yuoo2k

Rated 4 out of 5 stars 1,207 reviews

190,444 users

IE Tab - an extension from Taiwan, features: Embedding Internet Explorer in tabs of Mozilla/Firefox...

BlockSite by Wips.com s.r.o.

Rated 3 out of 5 stars 570 reviews

264,631 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.

Flashblock by Philip Chee

Rated 4 out of 5 stars 1,230 reviews

500,420 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...

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 375 reviews

249,400 users

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

Xmarks Sync by Xmarks Inc.

Rated 4 out of 5 stars 2,611 reviews

286,683 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!
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