Created attachment 8628796 [details] screenshot from Windows 10 (x64) Build 10158 Reproducible on: * Firefox 39.0 RC (build6: 20150630154324) * Aurora 40.0a2 (2015-06-29) * Nightly 42.0a1 (2015-07-01) Affected platforms: * Windows 10 Pro (x64) Insider Preview Build 10158 * Windows 8.1 Pro (x64) * Windows 7 (x64) Steps to reproduce: 1. Launch Firefox. 2. From about:addons > Plugins, make sure "Ask to Activate" is selected for "Shockwave Flash". 3. Open a website with flash content, e.g. http://www.flashgames247.com/ 4. Click and hold over the "Allow Now" button and release the click outside of it. Expected result: The "Allow Now" is deselected and only "Allow and Remember" remains in focus. Actual result: Both buttons remain selected. Additional notes: * This is likely an old regression, either way it's a minor issue affecting Windows-only.
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