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.

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.

Whether you're a Web designer or a JavaScript programmer, Firebug provides invaluable tools for debugging websites.

Hi:We have a page right now which works fine in Firefox, but something is going wrong in IE7. The issue is surrounding a flash movie which is written into the DOM using JQuery. Something is going ...

Among those coming in Firefox 5, 6, 7 and 8 are a new debugger, an updated garbage collection process, JavaScript enhancements as well as a redesigned JIT compiler.