Killer Extensions ++

by Phil D.

  • Updated April 18, 2017

About this Collection

Killer Add-ons with extended/specific features for power users. If you are looking for themes or security addons you may then check Killer Themes or Security & Privacy Compilation.

9 Add-ons in this Collection

FlashGot Mass Downloader by Giorgio Maone

Download Now

Featured

Rated 5 out of 5 stars 892 reviews

510 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

Download Now

Rated 4 out of 5 stars 336 reviews

186 users

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

FireFTP by Mime Čuvalo

Download Now

Rated 4 out of 5 stars 1,070 reviews

138 users

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

Check out my new project, FireSSH!

Element Hiding Helper for Adblock Plus by Felix Dahlke

Download Now

Rated 5 out of 5 stars 473 reviews

346 users

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

Live HTTP Headers by Daniel Savard, Nikolas Co

Download Now

Rated 4 out of 5 stars 216 reviews

44 users

View HTTP headers of a page and while browsing.

Session Manager by Michael Kraft

Download Now

Rated 5 out of 5 stars 850 reviews

164 users

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Mozilla Archive Format, with MHT and Faithful Save by Christopher Ottley, Paolo Amadini

Download Now

Rated 5 out of 5 stars 359 reviews

43 users

— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!

ChatZilla by Gijs Kruitbosch, Robert Ginda, others

Download Now

Rated 4 out of 5 stars 150 reviews

14,562 users

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

AutoPager by Wind Li

Download Now

Experimental

Rated 4 out of 5 stars 394 reviews

1 user

AutoPager automatically loads next pages when you reach the end of a page. It works on a ton of sites,Google,Yahoo..
It works well with most other add-ons adblock plus, WOT and most of the greasemonkey scripts.
You can also try AutoPagerLite.

What are Collections?

Collections are groups of related add-ons that anyone can create and share.

Explore Collections