In Flash Player 20 or earlier, use of video in Stage3D required use of the Video object, which is not hardware accelerated. Video and Camera support for Stage3D by VideoTexture for Flash Player (Release) The legacy behavior can be restored by applying the EnableInsecureLocalWithFileSystem=1 flag to mms.cfg. You must manually type or copy/paste your path into the text field above the buttons to add the file or folder to the trusted list. Please be aware that the “Browse for files” and “Browse for folder” buttons do not function properly. In the text field that appears, type or paste the file/folder path that you’d like to trust In the Developer Tools section, click the Trusted Location Settings buttonĬlick the “Add…” button and add relevant files and folders to the listįor Google Chrome (and other PPAPI browsers):Ĭhoose Edit Locations > Add Locations from the popup list On the affected system, go to the Flash Player Settings Manager: We highly recommend that you only circumvent these controls to enable content from sources that they trust.įor Internet Explorer, Edge, Firefox, Opera and Safari: Flash content hosted on the internet and local webservers, as well as the Standalone Flash Player remains unaffected.If you are a user who requires this functionality, these files can be added to the list of Trusted Locations in Flash Player.
This change only impacts Flash content played from the local filesystem, using the browser. Vast majority of Flash Player users and content will be unaffected by this change. In context of modern web security, we believe that it is time to retire local filesystem functionality in the browser plugin. When this functionality was introduced over a decade ago, it enabled an interesting array of use-cases ranging from simple games to interactive kiosks. When playing Flash (SWF) content from local filesystem, developers have historically been able to configure content to exclusively read from the filesystem, or communicate to the network. This feature will be helpful in mitigating protocol hijacking attacks and cookie hijacking.ĭisabling local-with-filesystem access in Flash Player by defaultīeginning with Flash Player 23, local-with-network permissions will now be applied to all local SWF content, regardless of the preference chosen at compile time. Flash Player will acknowledge the STS header in the response and further request to the same domain will always be HTTPS. This will be particularly helpful when a SWF calls another SWF (child SWF) that is present in HSTS enabled server. Flash Player will now acknowledge the STS header in HTTPS response. HTTPS response may have a Strict-Transport-Security(STS) header field that requests the user agent to make further requests in HTTPS. HSTS is an IETF standard, which enforces user agents (browsers) to use HTTPS for communication instead of HTTP. To disable AsynchronousDrawing support in Firefox, go to “about:config” in the search bar of the browser and set “.enabled” to false.īeginning with Flash Player 23, we have introduced support for HSTS (HTTP Strict Transport Security).
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The choice of which Async Drawing path is used (hardware or software) depends on whether the browser supports hardware or software Async Drawing modes. It is currently available from FP version 23.0 in Firefox Nightly 51.0a1, the Firefox versions supporting the feature is yet to be announced.
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If asynchronous drawing is unavailable for any reason, the plugin falls back to using the existing synchronous drawing model.ĪsyncDrawing is supported in NPAPI Plugin on Windows desktop platforms only. It is not used in fullscreen mode, or in windowed mode where the plugin draws directly to its own window.
This feature allows wmode “direct” (wmode opaque and transparent) to behave as “windowless” in hardware accelerated async drawing. It is used only when the stage is composited with rest of the content in the browser window. Async Drawing refers to the method that the browser and Flash Player use to exchange a bitmap surface where Flash Player draws the SWF content.
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