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Welcome to your new favorite browser. Get the latest features, fast performance, and the development tools you need to build for the open web.
A: Firepath and Firebug are very useful and powerful Firefox add-ons that could be use to inspect and generate XPath 1.0 expressions. Before using them, you need to install them in Mozilla Firefox browser. Make your Mozilla Firefox browser open and active,.
Firefox Developer Edition automatically sends feedback to Mozilla. Learn more
Faster Performance
A Next-Generation CSS Engine
Firefox Quantum includes a new CSS engine, written in Rust, that has state-of-the-art innovations and is blazingly fast.
New ToolsFirefox DevTools
The new Firefox DevTools are powerful, flexible, and best of all, hackable. This includes a best-in-class JavaScript debugger, which can target multiple browsers and is built in React and Redux.
Innovative FeaturesMaster CSS Grid
Firefox is the only browser with tools built specifically for building and designing with CSS Grid. These tools allow you to visualize the grid, display associated area names, preview transformations on the grid and much more.
Convenient FeaturesShapes Editor
Firefox DevTools has a brand new shape path editor that takes the guesswork out of fine-tuning your shape-outside and clip-path shapes by allowing you to very easily fine-tune your adjustments with a visual editor.
Faster InformationFonts Panel
The new fonts panel in Firefox DevTools gives developers quick access to all of the information they need about the fonts being used in an element. It also includes valuable information such as the font source, weight, style and more.
Design. Code. Test. Refine.Build and Perfect your sites
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