Excelsior 4

by FujiSenseiSan

299 Add-ons in this Collection

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 2,899 reviews

280 users

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

Startpage HTTPS Privacy Search Engine by StartPage

Rated 5 out of 5 stars 124 reviews

8,000 weekly downloads

Add Startpage - The World's Most Private Search Engine - to your search box. Startpage does not record your IP address. Search the Web in the best possible privacy!

FlashGot Mass Downloader by Giorgio Maone

Rated 5 out of 5 stars 892 reviews

518 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.

Auto Resize Image by TrVTrV

Rated 4 out of 5 stars 61 reviews

327 users

Resizer for inline and attachment images (JPEG, PNG, BMP and GIF image formats).
All platforms are supported (Windows, Linux and Macintosh).

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 336 reviews

185 users

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

SQLite Manager by lazierthanthou

Rated 4 out of 5 stars 354 reviews

99 users

Manage any SQLite database on your computer.

DuckDuckGo (HTTPS / SSL) by DuckDuckGo

Rated 5 out of 5 stars 128 reviews

2,164 weekly downloads

DuckDuckGo is the search engine that doesn't track you. We also have smarter answers and less clutter. This extension adds DuckDuckGo (HTTPS / SSL version) to the search bar. For more features, see the DuckDuckGo Plus add-on. Enjoy!

MinimizeToTray revived by Nils Maier

Minimizes windows into the system tray.

Element Hiding Helper for Adblock Plus by Felix Dahlke

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.

Ixquick (SSL) by SSL Search Bar

Download Now

Experimental

Rated 5 out of 5 stars 5 reviews

1,083 weekly downloads

Ixquick is a search engine that does not collect or share personally identifiable information. This search bar add-on utilizes SSL to protect searches between You and Ixquick.

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 216 reviews

41 users

View HTTP headers of a page and while browsing.

NoRedirect by Kai Liu

Rated 4 out of 5 stars 95 reviews

6 users

NoRedirect lets the user take control of HTTP redirects. It can be used to interdict an ISP's DNS search redirection hijacks, preview/screen "shortened" URLs (e.g., TinyURL), stop the annoying redirection of "smart" error pages, etc.

HttpFox by Martin Theimer

Rated 4 out of 5 stars 217 reviews

19 users

An HTTP analyzer addon for Firefox

UnMHT by arai_a

Rated 4 out of 5 stars 300 reviews

44 users

UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.

DownThemAll! AntiContainer by Nils Maier

Rated 5 out of 5 stars 40 reviews

35 users

Make the resources behind container pages easily downloadable by DownThemAll!
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