With its open source debugger.html tool, launched this week, Mozilla is providing a JavaScript debugger that can debug multiple targets and work in a standalone mode. The effort is part of a plan ...

Mozilla has launched Firefox 77 with faster JavaScript debugging, optional permissions for extensions, and Pocket recommendations in the U.K.

Specifically, Web devs will be able to use Firefox's JavaScript debugger, DOM inspector, and CSS editor with Firefox, Chrome, and Safari.

Mozilla developers have released a new JavaScript debugger for Firefox. It's hoped the new "Debugger.html" will replace todays XUL-based debugger, which the project's Bryan Clark describes as ...

Mozilla began migrating Firebug features to the built-in Firefox debugging tools in 2016. Core Firefox developer tools include a page inspector, web console, JavaScript debugger, and network monitor.

Issue Type: Performance Issue When I installed the Debugger for Firefox 2.9.1 from Visual Studio Code, it appears in the list of the available Debugging environments, but when I start a debugging s ...

Perhaps the biggest change in Firefox 15 is that it ships with a debugger that developers can use to find issues with their JavaScript code. The debugger is available via the Web Developer menu.