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Proxy Tool Requires Restart

Proxy Tool - Powerful, yet User-friendly proxy tool to manage your proxies and anonymity needs, including: 46M+ user agents (world's largest), 10 different spoofed HTTP referrers, auto-proxy rotation, plus many more. Developed by http://ProxyList.co

Rated 3 out of 5 stars (41)
158,095 users

NoScript Security Suite Requires Restart Featured

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Rated 5 out of 5 stars (1,559)
2,279,646 users

User Agent Switcher Requires Restart

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

Rated 4 out of 5 stars (270)
315,070 users

Clear Cache and Data

Clears the browser cache and other selected storage.

Rated 5 out of 5 stars (3)
3,291 users

Link Properties Plus Requires Restart

Provides extended link properties: size of linked file, last modified time, etc.

Rated 5 out of 5 stars (15)
1,810 users

Image Zoom (ugly fixes) Requires Restart

An ugly attempt at fixing Image Zoom

Rated 4 out of 5 stars (11)
2,807 users

MR Tech Toolkit Requires Restart

(Formerly Local Install) The primary goal of this extension is to provide the tools needed to install and manage extensions and themes locally and tons of other features.

Note: With Toolkit 6.0 Auto Archiving is fully working in Firefox 2.0 and temp...

Rated 4 out of 5 stars (143)
20,746 users

Live HTTP Headers (clone)

View HTTP headers of a page and while browsing.

This is an unofficial "Live HTTP headers" clone, mainly to fix the Replay feature!

Rated 4 out of 5 stars (8)
5,701 users

FoxyProxy Standard Requires Restart

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

Rated 4 out of 5 stars (379)
257,180 users

about:addons-memory 2016

Adds a new page that shows add-on memory usage

Rated 5 out of 5 stars (29)
14,895 users

Add-ons Manager - Version Number

Restores version numbers for all installed add-ons inside Add-on Manager on Firefox, Thunderbird and Seamonkey.

Rated 5 out of 5 stars (21)
1,861 users

Rainbowpicker Requires Restart

Pick any color of the...

Rated 4 out of 5 stars (19)
617 users

XML Digital Signature Tool Requires Restart

XML Digital Signature Tool is a Firefox add-on for processing Digital Signature in XML documents
(Please read the installation instruction in the "Developer Comments" section before downloading)

Rated 4 out of 5 stars (3)
142 users

DOM Inspector Plus! [dm] Requires Restart

Improved DOM Inspector! [dm version]. Box Model new layout & more data, see screenshot!. Horizontal scroll for Dom-Tree, and some more.
Inspects the structure and properties of a window and its contents.

Rated 5 out of 5 stars (5)
506 users

No More Install Delay

UPDATE: XPI delay has been removed in Firefox 40!

Disable the install delay in Firefox. New 2.0 version now includes GreaseMonkey scripts!

Unlike similar addons, this works on Firefox 4 and beyond.

Rated 4 out of 5 stars (12)
554 users

IE Tab V2 Requires Restart

Ported version of IE Tab V2 (Enhanced IE Tab) that is compatible with SeaMonkey 2. Based on IETab.net work.

Rated 5 out of 5 stars (2)
73 users

Web Server Check Tool Requires Restart

A tool to perform basic checks on web and DAV servers.

Not yet rated
155 users

ACColorPicker

A full featured color selector tool, to work with colors, and easily find the colors you want.
很方便色取色器,可以页面上直接取色,然后再对颜色进行进一步的调整

Not yet rated
270 users

bbeContainer Requires Restart

an extension that allows users to edit local files with browser-based editors.

Not yet rated
7 users

ksbtechies

Displays latest ksbtehchies News in a popup widget
Get all the Latest ksbtehchies News headline with a single click.

Opens a popup widget with the latest news headlines.

Not yet rated
1 user