This is one of the most popular themes in the Firefox Theme gallery month after month. Note: If you want to have a choice of the language for your Firefox. It will automatically detect the platform and language on your computer and recommend the best version of Firefox for you. To download and install Firefox: Visit the Firefox download page in any browser (for example, Safari). Installing Firefox on Mac.Power usage, in Watts, as displayed by Intel Power Gadget. As a result, Firefox 70 drastically reduces the power usage during browsing. This allows us to do less work per frame when only small parts of the screen change.Find the javascript.enabled row under the Preference Name heading.In short, Firefox 70 improves power usage by 3x or more for many use cases. Click the Show All button at the top of the browser window. On the following page, click the 'Accept the Risk and Continue' button. Copy the following then paste it into the Firefox address bar: about:config. Open a new Firefox browser window or tab.
Thank you, I’m very happy to finally see Core Animation being implemented. Prior to this update I literally couldn’t use Firefox because it would spin my fans way up and slow down my whole computer. Download the latest version of Mozilla Firefox for Mac.I’m seeing a huge improvement over here too (2015 13″ MacBook Pro with scaled resolutions on internal display as well as external 4K display). Users have reported much longer battery life, cooler machines and less fan spinning.This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system on a. ![]() Firefox 69 was using the API described above. This is a limitation which does not exist on Windows: On Windows, the corresponding API has full support for partial redraws.Every Firefox window contains one OpenGL context, which covers the entire window. This updates the screen with your rendered content.The crucial limitation here is that flushBuffer gives you no way to indicate which parts of the OpenGL context have changed. At the end of each frame, you call -. Apple’s OpenGL documentation recommends the following method of getting OpenGL content to the screen: You create an NSOpenGLContext, you attach it to an NSView (using -), and then you render to the context’s default framebuffer, filling the entire framebuffer with fresh content. Starting with macOS 10.14, all windows use Core Animation by default, as a way to share their rendering with the window manager.So, does Core Animation have an API which lets us indicate which areas inside an OpenGL context have changed? No, unfortunately it does not. The layer tree defines the positions, sizes, and order of the layers within the window. These layers usually contain textures with some pixel content. Enter Core AnimationCore Animation is the name of an Apple framework which lets you create a tree of layers ( CALayer). This turned out to be a problem despite the fact that these draws were fully hardware accelerated. This was not possible with the old API we were using: Without Core Animation, we would have needed to create multiple NSViews, each with their own NSOpenGLContext, and then call flushBuffer on each context on every frame. Nevertheless, all major browsers on macOS now make use of this API.)Secondly, Core Animation lets us display OpenGL rendering in multiple places within the window at the same time and update it in a synchronized fashion. It’s worth noting that the ability to assign an IOSurface to the CALayer contents property is not properly documented. (IOSurface is the macOS API which provides a handle to a GPU buffer that can be shared between processes. Then, when the window manager composites that CALayer onto the screen surface, it will read directly from our GPU buffer with no additional copies. With the old API, if any part of our OpenGL context’s default framebuffer was transparent, we needed to make the entire OpenGL context transparent.Lastly, Core Animation allows us to move rendered content around in the window cheaply. This cuts down the window manager’s work some more for areas of the window that only contain opaque layers. And we can mark individual layers as opaque or transparent. But with Core Animation, we can just group updates from multiple layers into the same CATransaction, and the screen will be updated atomically.Having multiple layers allows us to update just parts of the window: Whenever a layer is mutated in any way, the window manager will redraw an area that includes the bounds of that layer, rather than the bounds of the entire window. What is the latest adobe flash player version for macThis allows us to reduce the work in step 2 drastically: Our compositor can now finally do partial redraws. In the new world, Firefox renders to offscreen buffers of its own creation and it knows exactly which pixels of each buffer need to be updated and which pixels still contain valid content. Because of this, we just ignored the framebuffer content and re-rendered the entire buffer. So on every frame, we could guess that the existing framebuffer content was probably two frames old, but we could never know for sure. In the past, we were asking for a double-buffered OpenGL context, and our rendering to the default framebuffer was relying on the built-in swap chain. (Our current compositor does not yet make use of this capability, but future work in WebRender will take advantage of it.) The Firefox Core Animation compositorHow do we make use of those capabilities in Firefox now?The most important change is that Firefox is now in full control of its swap chain. We are targeting WebRender for these further optimizations. Using the “Flash screen updates” setting, you can see that the window manager’s repaint area in Firefox 70 (on the right) is a lot smaller when a tab is loading in the background:And in this screenshot with the “Show opaque regions” feature, you can see that Firefox now marks most of the window as opaque (green): Future WorkWe are planning to build onto this work to improve other browsing use cases: Scrolling and full screen video can be made even more efficient by using Core Animation in smarter ways. It also means that the window manager does not need to redraw the vibrancy blur effect unless something in the vibrant part of the window changes.The rendering pipeline in Firefox on macOS now looks as follows:Step 1: Firefox draws pixels into “Gecko layers”.Step 2: For each square CALayer tile in the window, the Firefox compositor combines the relevant Gecko layers to redraw the changed parts of that CALayer.Step 3: The operating system’s window manager assembles all updated windows and CALayers on the screen to produce the screen content.You can use the Quartz Debug app to visualize the improvements in step 3. This saves some more work in step 3. This cuts down on work in step 3.And finally, Firefox windows are additionally split into transparent and opaque parts: Transparent CALayers cover the “vibrant” portions of the window, and opaque layers cover the rest of the window. Firefox 32 Code And TheAnd thanks to all the other testers that made sure this change didn’t introduce any bugs, and to everyone who followed along on Bugzilla.During the research phase of this project, the Chrome source code and the public Chrome development notes turned out to be an invaluable resource. Thanks to Firefox contributor Mark, who identified the severity of this problem early on, provided sound evidence, and was very helpful with testing. I would like to thank everybody involved for their hard work. Matt Woodrow reviewed the vast majority of these patches. AcknowledgementsWe implemented these changes with over 100 patches distributed among 28 bugzilla bugs. Firefox uses partial compositing on some platforms and GPU combinations, but not on all of them. Are there similar problems on other platforms? Their findings accelerated our research and allowed us to implement the most efficient approach right from the start.
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