Excelsior 4

by FujiSenseiSan

299 Add-ons in this Collection

WorldIP - Geo Add-on with Security Features by Alrond

Rated 5 out of 5 stars 124 reviews

21 users

Professional Geo Add-on with security features and advanced network tools. Anti-phishing. Protection against DNS spoofing and fake sites. All DNS records for domain. The real location of web server, country flag, extended information about datacenter

Toggle Proxy by trigano

The move to Webextensions by Mozilla for Firefox 57+ has made it impossible to modify about:config, this holds Firefox proxy settings. Therefore, this and many other addons will become obsolite from Firefox 57+ onwards unless Mozilla update the API.

DuckDuckGo (Lite SSL) by DuckDuckGo

Rated 4 out of 5 stars 10 reviews

117 weekly downloads

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

NewsFox by Andrey Gromyko, R Pruitt

Rated 4 out of 5 stars 239 reviews

28 users

NewsFox is an efficient 3-pane(email) style Atom/RSS feed reader.

iMEGA by Diego Casorran

Rated 5 out of 5 stars 20 reviews

1 user

This add-on is intended to ease the life of the regular MEGA user.

Please note this extension is NOT the official from Mega, for the real one please go to: https://mega.nz/#firefox

Disable DragAndDrop (Thunderbird) by Takayama Fumihiko

Rated 5 out of 5 stars 19 reviews

69 users

A Thunderbird extension which disables drag and drop in the folder pane.
This extension prevents unintended folder movement.

IE View by EmmaSawyers, searchresults

Rated 3 out of 5 stars 154 reviews

19 users

Lets you load pages in IE with a single right-click, or mark certain sites to *always* load in IE.

Leet Key by Roman Mironenko

Rated 4 out of 5 stars 52 reviews

7 users

Transforms typed or static text to L337, ROT13, BASE64, HEX, URL, BIN, DES, AES, Morse code, DVORAK keyboard layout and to lower/to upper case functionality, Leet Font...

URL Fixer by eyeo GmbH

Rated 4 out of 5 stars 162 reviews

1 user

URL Fixer fixes common typos in URLs entered in the address bar. It will fix errors like "google.con" or "youtube,com". You have the option of being asked to confirm corrections before they are applied.

Awesome ldapInfoShow by wang opera

Rated 4 out of 5 stars 14 reviews

61 users

Show contact photo and other info from Local Dir, Addressbook, LDAP, Facebook, LinkedIn, Flickr, Gravatar etc

Right Links by Infocatcher

Rated 5 out of 5 stars 148 reviews

9 users

This extension allows to open links in new tabs with right-click directly and using “long” left-click.
This is very useful for touchpads on notebooks and for mice without middle button.

Addons Manager Hilite by custom.firefox.lady

Remembers last selected (hilited) extension/theme/plugin/userstyle in Add-ons Manager. Version 3.0 also includes sorting buttons. Turn off/on the add-on selection list box and/or fine tune behavior via its Options.

LookOut+ by Attila K. Mergl

Download Now

Experimental

Rated 4 out of 5 stars 5 reviews

52 users

LookOut is a plugin which allows to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).

This version is a fix for Seamonkey 2.*.

Execute JS by Rudolf Noe

Rated 5 out of 5 stars 15 reviews

0 users

Execute JS is a enhanced JavaScript-Console, where you can comfortably enter and execute arbitrary JavaScript-Code and modify functions...

No Small Text by Peter J. Sloetjes, MSc.

Rated 4 out of 5 stars 21 reviews

25 users

Set a minimum text size for all web content. Use the toolbar button to switch it on and off. NEW: Three preset sizes. NEW: Use mouse scroll on the toolbar button.
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