官方版本88.0预计在 2021年04月20日(美国时间) 台湾时间04月20日~04月21日 更新 更新日志 https://www.mozilla.org/en-US/firefox/87.0/releasenotes/ New︰ You’ll encounter less website breakage in Private Browsing and Strict Enhanced Tracking Protection with SmartBlock, which provides stand-in scripts https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/ so that websites load properly. To further protect your privacy, our new default HTTP Referrer policy https://blog.mozilla.org/security/?p=2704 will trim path and query string information from referrer headers to prevent sites from accidentally leaking sensitive user data. The “Highlight All” feature on Find in Page now displays tick marks alongside your scrollbar that correspond to the location of matches found on that page. We’re proud to announce full support for macOS built-in screen reader, VoiceOver. https://blog.mozilla.org/accessibility/?p=20 We’ve added a new locale: Silesian (szl) Fixed︰ We’ve fixed several significant accessibility issues: ．Video controls now have visible focus styling and video and audio controls are now keyboard navigable. (Bug 1681007) https://bugzilla.mozilla.org/1681007 ．HTML <meter> is now spoken by screen readers. (Bug 1460378) https://bugzilla.mozilla.org/1460378 ．Firefox now sets a useful initial focus in Add-ons Manager. (Bug 580537) https://bugzilla.mozilla.org/580537 ．Firefox will now fire a name/description change event when aria-labelledby/describedby content changes. (Bug 493683) https://bugzilla.mozilla.org/493683 Various security fixes. https://www.mozilla.org/security/known-vulnerabilities/firefox/#firefox87 Changed︰ To prevent user data loss when filling out forms, we’ve disabled the Backspace key as a navigation shortcut for the back navigation button. To re-enable the Backspace keyboard shortcut, you can change the about:config preference browser.backspace_action to 0. You can also use the recommended Alt + Left arrow (Command + Left arrow on Mac) shortcut instead. Firefox keyboard shortcuts https://tinyurl.com/274wyt5s We've removed items from the Library menu that weren't used often or have other access points in the browser: Synced tabs, Recent highlights, and Pocket list. We've simplified the Help menu by reducing redundant items, such as those that point to Firefox support pages that can also be accessed via the Get Help item. Enterprise︰ Various bug fixes and new policies have been implemented in the latest version of Firefox. You can see more details in the Firefox for Enterprise 87 Release Notes. https://support.mozilla.org/kb/firefox-enterprise-87-release-notes Developer︰ We've greatly simplified the Web Developer menu. Go to Application Menu > Web Developer > Web Developer Tools to access Inspector, Web Console, Debugger, Network Style Error, Performance, Storage Inspector, Accessibility, and Application Developers can now use the Page Inspector to simulate prefers-color-scheme https://is.gd/GqLODo https://developer.mozilla.org/docs/Web/CSS/@media/prefers-color-scheme media queries, without having to change the operating system to light or dark mode. Developers can now use the Page Inspector to toggle the :target https://developer.mozilla.org/docs/Web/CSS/:target pseudo-class for the currently selected element in addition to the pseudo-classes that were previously supported: :hover, :active and :focus, :focus-within, https://developer.mozilla.org/docs/Web/CSS/:hover https://developer.mozilla.org/docs/Web/CSS/:active https://developer.mozilla.org/docs/Web/CSS/:focus https://developer.mozilla.org/docs/Web/CSS/:focus-within :focus-visible, and :visited. https://developer.mozilla.org/docs/Web/CSS/:focus-visible https://developer.mozilla.org/docs/Web/CSS/:visited There is a number of Page Inspector improvements and bug fixes related to inactive CSS rules: The table-layout property is now marked as inactive for non-table https://developer.mozilla.org/docs/Web/CSS/table-layout elements. The scroll-padding properties (shorthand and longhand) are now marked as https://developer.mozilla.org/docs/Web/CSS/scroll-padding inactive for non-scrollable elements. The text-overflow property was previously incorrectly marked as inactive https://developer.mozilla.org/docs/Web/CSS/text-overflow for some overflow values. --

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