Developer Tools


Topic Replies Activity
Getting started with Firefox DevTools

Welcome! This forum is for discussing Firefox’s built-in developer tools which are used for inspecting and debugging websites. Check out firefox-dev.tools for more about our community and ways to get involved. Brush up…

2 April 20, 2018
Can't set Debugger breakpoints 12 October 22, 2019
📯 Feedback Wanted: WebSocket Inspector in DevEdition 70 8 October 21, 2019
Long line wrapping in Developer tools CSS editor and Debugger code views 1 October 18, 2019
Resizing viewport of resposive view breaks scrolling 4 September 18, 2019
How to make the Console automatically scroll? 14 October 14, 2019
Screensize 11 October 11, 2019
Dock to bottom buttons 5 October 8, 2019
Panel transparency for web development! 5 October 7, 2019
Option to show ruler by default 3 September 26, 2019
Ruler functionality in dev tools provides HeightxWidth instead of WidthxHeight 4 September 26, 2019
[Nightly: dark mode] brackets and dot not visible in the dev-tools 3 September 26, 2019
Storage Inspector - When Deleting Cookies (in Private Mode) Why Doesnt it Clear? 6 September 22, 2019
How will Firefox respond to the end of Flash Player support? 3 September 19, 2019
Can't use file picker on Firefox Dev edition 70.0b macOS 10.11.6 3 September 18, 2019
DevTools open when load a localhost web page, makes Firefox uses 100/200% CPU 7 September 14, 2019
Links in response headers no longer clickable 1 September 12, 2019
Undo CSS declaration in CSS pane with CTRL + Z? 3 September 8, 2019
Editing Variables in the New Debugger 3 September 7, 2019
List out properties in the inspector 2 September 6, 2019
DOM Mutation Breakpoints 4 August 30, 2019
Errors in console are not helpful in angular specific scenario, as opposed to brave 5 August 30, 2019
Where is web console for Firefox nightly Android version? 4 August 27, 2019
Refined developer-tools font customization settings? 2 August 27, 2019
How do I stop the javascript debugger, console, and performance profiler from freezing during javascript execution so I can troubleshoot the slowdown? 3 August 16, 2019
Is there a way to move network tab in developer tools? 3 August 15, 2019
Developer edition Snap package 4 August 14, 2019
Cannot debug inline script 2 August 11, 2019
How can I get the xpath of an element in developer tools as firebug is not supported in latest ff 6 June 4, 2018
Live Console Expression Evaluator Missing 3 August 6, 2019