

Test sites on emulated devices in your browser.įine-tune animations, alignment and padding.

Monitor network requests that can slow or block your site.Īdd, modify and remove cache, cookies, databases and session data. Powerful JavaScript debugger with support for your framework. Track CSS, JavaScript, security and network issues. Get the latest features, fast performance, and the development tools you need to build for the open web. The ellipsis menu on the right-hand side of Developer Tools contains several commands that let you perform actions. Preferences tailored for web developers: Browser and remote debugging are enabled by default, as are the dark theme and developer. You can open the Firefox Developer Tools from the menu by selecting Tools > Web Developer > Web Developer Tools or use the keyboard shortcut Ctrl + Shift + I or F12 on Windows and Linux, or Cmd + Opt + I on macOS.

A separate profile and path so you can easily run it alongside Release or Beta Firefox.
#FIREFOX DEVELOPER EDITION BROKEN CODE#
Inspect and refine code to build pixel-perfect layouts. All the latest developer tools in beta, plus experimental features like the Multi-line Console Editor and WebSocket Inspector. All broken links are placed in a separated category for easier detection. You can optionally ask the extension to check links inside about:blank frame elements are well. It also includes valuable information such as the font source, weight, style and more. This tool examines all links in the current page (top frame and all sub-frames) and returns the status code and its meaning for each link. 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.
