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Choose from thousands of extra features and styles to make Firefox your own.
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DevPrefs
Automatically sets all preferences for Firefox addon developer production environment.
Extensor
Quick access to add-on functions from a toolbar panel: Options, (De)Activate, Details, Home page, Review page, Donation page, Uninstall, Restart application.
JSON Inspector
Inspect JSON object from a URL or entered data.
Requires either DOM Inspector or DOM Inspector Plus! [dm] extension.
GitHub Extension Installer
Install Browser Extensions straight from GitHub Repositories
Whois & Flags Firefox & Websites Popularity Rating Requires Restart
Display Country Flag indicating Website Physical Location (Country, State, City). Website Popularity (Live Visitor Statistics). Shows how many users are visiting any World Website per day. Website IP IPv6 Addresses, DNS, Hosting. IP Whois Lookup
Planteen Host Email Requires Restart
This is the official quick access link for Planteen Host Email. Plenty of FREE extras! Business and Corporate class email. Use your own domain, reliable, secure and access from any device.
Whois Lookup & Hosting & DNS & Site Flags Firefox Requires Restart
IP Whois Lookup & Website Reviews & Rating. Display country flag indicating website location. Alexa and Norton Antivirus Site Adviser. Supported: GoDaddy, NetworkSolutions, Dotster, 1and1, NameCheap, Register, Yahoo, 123-Reg, FatCow, Enom, FastHosts.
Google Redesigned 2 Requires Restart
Ported version from Firefox to be compatible with Seamonkey 2.
A complete redesign of popular Google services, Google Redesigned changes the appearance of popular Google services.
sepsis-console (Deprecated) Requires Restart
THIS VERSION IS DEPRECATED. Use https://addons.mozilla.org/en-US/developers/addon/sepsis-console instead. See the description below.
sepsis-console is a general-purpose JavaScript console for all Mozilla toolkit applications.
Stylish Tools Requires Restart
Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey
TreeStat Requires Restart
Display the open/closed status of Mozilla's trees
about:addons-memory
Adds an about:addons-memory page that details add-on memory usage
Link Properties Plus Requires Restart
Provides extended link properties: size of linked file, last modified time, etc.
ThaiSEObar Requires Restart
แถบเครื่องมือของ ThaiSeoBar (PR, Dmoz, Google) เป็นเครื่องมือที่อำนวยความสะดวกสำหรับวิเคราะห์ SEO ของข้อมูลในเว็บไซต์อย่างรวดเร็วที่ซึ่งมีจุดประสงค์ให้เว็บมาสเตอร์เป็นผู้ใช้ นอกจากนี้ยังมีคุณสมบัติพิเศษสำหรับผู้ใช้ทั่วไปอีกด้วย
http://thaiseobar.com
Android Debug Bridge For Firefox
This addon adds some Android Debug Bridge access to Firefox. It requires access to the adb/adb.exe executable from the Android SDK.
AdWords OK Requires Restart
Google Adwords Statistical Relevance View Expansion: Don't make decisions on average values. AdWords-OK expands your AdWords statistics by min and max-values. Your values will stay in the longterm with a probability of over 95% between this values.
Config Descriptions
Shows source comments for advanced application preferences in about:config
JavaScript Object Examiner Requires Restart
Display JavaScript object methods and properties for any available scope.
Colorific
Colorize entire web pages. Configure themes using sliders and drag-and-drop. Set domain preferences for automatic coloration.
To create your own collections, you must have a Mozilla Add-ons account.