Color tools for web development.
Color picker and eyedropper + saving colors and trying out colors with drag and drop.
Gibson Les Paul,
Pick any color of the...
Random Agent Spoofer No Restart
Rotates complete browser profiles ( from real browsers / devices ) at a user defined time interval. It includes many extra privacy enhancing options
Random Select Radio Buttons No Restart
Click this Button and all radio buttons on the current website will be selected on a random basis.
Easy access to the Ranks NL Page Analyzer. For Ranks Friends only. Please note you need to be logged in for this Add on to work.
RapidIMG Quick Uploader
Firefox connector for Rapise
RDF (Resource Description Framework) is a model for storing graphs of information. This is a tool for exploring the structure of a RDF...
Displays RDFa triples, errors, warnings and executes SPARQL queries
RDP Inspector No Restart
Remote debugger protocol inspector
RDS seo toolbar (pr, dmoz, alexa, seomoz ... ) – is a useful tool for fast analysis of website and page SEO indicators, designed for webmasters and optimizers. And also with a range of useful functions for ordinary users.
Re-Pagination No Restart
See more search results etc. on one page, concatenating several pages together...
React Developer Tools No Restart
React Developer Tools is a tool that allows you to inspect a React tree, including the component hierarchy, props, state, and more. To get started, just open the Firefox devtools and switch to the React tab.
Fast page style switcher. It adds toolbar button, context menu item and hotkey (CTRL+ALT+Z) to disable/enable styles on web pages.
Record Network Activity No Restart
This is an addon to record network activity (HTTP Request, Cookie Operation) for statistics.
Record Site IP For SEO.
RecScreenMaker No Restart
Make screenshots recursively
SEO Global For Google Search™ (Formerly Google Global) is an unobtrusive Firefox extension that allows you to see what the Google search results that you are viewing look like from different geographical locations.