![]() I like computing, bicycles, hiphop, books, and pen plotters. To learn more, check out the Memory tool documentation on MDN, and remember, we want to hear from you! Download Firefox Developer Edition today, and let us know what tools or enhancements you want to see next by leaving a comment or tweeting at About Dan CallahanĮngineer with Mozilla Developer Relations, former Mozilla Persona developer. You can take several snapshots to help determine at a glance whether your application’s memory usage is growing or shrinking over time. The list of snapshots also includes the total MB of memory accounted for in the snapshot. Unlike other groupings, this view directly ties items in memory back to the code that actually created them. The payoff, however, is worth it: this view groups the things in the heap by the source location in your JavaScript code. Perhaps most interesting is the fourth and final grouping option: “ allocation stack.” You have to turn this option on manually by ticking the “record allocation stacks” checkbox at the top of the Memory panel, since tracking allocations can degrade the application’s performance while the box is checked. This latter view is mostly useful for Firefox platform developers. ![]() You can also group the snapshot by “ object class,” which groups by their JavaScript ] class, or by “ internal type,” which groups things by their C++ type names. Other: Miscellaneous structures that do not fit in the above categories.Strings: JavaScript strings used by the web application.Scripts: The JavaScript source text loaded by the web application and its resulting executable machine code produced by SpiderMonkey’s JIT compiler, IonMonkey.Further grouped by each object’s internal ] name. By default, the contents are grouped by “ coarse type,” where each thing in memory falls into one of four classifications: The Memory tool works by taking snapshots of everything in memory, and presenting them as a tree/table with various grouping settings. Baptiste Kaenel, a freelance Creative Designer and Mozilla community member from France, put together a fantastic video demonstrating how to use this powerful new tool. This is especially useful for developers targeting the mobile web, and thus working with constrained resources. So what if Google is spitting out Chrome versions like crazy?…"Oh God, Chrome's at version 15 already, gotta get humpin' ".Firefox Developer Edition 44, released last week, includes a brand new memory tool to help you understand how your web applications are using and retaining memory. I may even forgive Mozilla for its wham, bam, thank you mam approach to turning out versions, although I still can't grok Mozilla's rationale for turning out versions so frequently. Yeah, Firefox is real sweet once again everthing's copasetic at this point. At least Ghostery is working, I hate web bugs(trackers, behavioral data collectors and ad networks In Ghostery I can block those miscreants). Of course, most of my ad-ons don't work in Aurora yet, but before long they should be compatible. I've got both v7 and 9(Aurora) in my dock and have been switching back and forth comparing the two and have to say that unless Aurora throws me a major curve, I'll likely stay with it. I'm finding it a bit faster than v7.0.1 and have yet to discover a bug therein. Now, Aurora(really FF9) comes along and whaddya know, it's incredibly good I am impressed. I seem to be one of the only ones for whom 7.0.1 is a winner.Īt v7 I was about ready to give up on FF I was bitching and moaning along with many others. Then, inexplicably, v7.0.1 turned things around for me being essentially issue free. FF 5 through 7 have been incredibly glitchy for me with v7 being a real bummer.
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