Firefox Developer Tools ideas

Welcome to the feedback channel for Firefox Developer Tools. This is a place for constructive feedback around the tools with ideas and feature suggestions. It is not a support forum or place to report bugs. For support, please go to the #devtools channel on Mozilla IRC or the firefox-developer-tools tag on Stack Overflow, and for reporting bugs, go to Bugzilla.

The documentation on how the Developer Tools work is available on MDN.

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  1. Memory monitoring

    I want to be able to monitor memory usage in my mobile web app. I want my mobile ap to use as little memory as possible.

    221 votes
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      started  ·  13 comments  ·  Flag idea as inappropriate…  ·  Admin →
    • CSS Animation Editor

      CSS frame-by-frame animation editor. I believe someone on devtools started this project (might have been Paul Rouget?) and I would love to see it resurrected.

      161 votes
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        started  ·  5 comments  ·  Flag idea as inappropriate…  ·  Admin →
      • Make the changes that happen in the Inspector's CSS rules written in the style editor CSS file

        Hi,

        In the Google Chrome Inspector, when i make some changes in the inspector's CSS rules, the changes get written in the style editor CSS file, so when i consult the file directly in the style editor, all the changes that i made with the inspector will make it there.

        This feature is missing in the Firefox Inspector and it would be amazing to have there.

        That's the only thing keeping me from to switching to Firefox as my full-time development browser.

        Thanks !

        17 votes
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          1 comment  ·  Flag idea as inappropriate…  ·  Admin →
        • Use WebIDE as an IDE for Cordova / PhoneGap

          WebIDE is restricted to being used just for Firefox OS apps. However, it has so much more potential, and it would be nice if it could be used for Cordova apps.

          16 votes
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            2 comments  ·  Flag idea as inappropriate…  ·  Admin →

            This is already planned and is being worked on as we speak. Thanks for the validation, we think this will a great addition to the WebIDE’s capabilities! But please keep voting for this if you like it.

          • Display JIT information in Debugger and Profiler

            JIT bailouts and invalidation can be expensive, especially in games. Having insights into which parts of your code could not be jitted and why can help to optimize hot loops.

            Showing marks in the Profiler when JIT invalidation happens can give valuable insights for otherwise unexplainable janking.

            23 votes
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              0 comments  ·  Flag idea as inappropriate…  ·  Admin →
            • 5 votes
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                1 comment  ·  Flag idea as inappropriate…  ·  Admin →
              • Add "Expand / Collapse All" to markup view

                This is handy in the case that you want to see all of the nodes in your page.

                related bug: https://bugzilla.mozilla.org/show_bug.cgi?id=895887

                3 votes
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                  started  ·  1 comment  ·  Flag idea as inappropriate…  ·  Admin →
                • I'd love to see a flame chart in the profiler.

                  The flame chart in Chrome is a very fast and easy way to find hot spots in your JavaScript. I'd love to see that make its way into Firefox; I bet you could do it even better.

                  1 vote
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                    0 comments  ·  Flag idea as inappropriate…  ·  Admin →
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