Mozilla Firefox 152.0

New

• Firefox Settings features a brand-new look with streamlined organization, clearer groupings, and improved navigation for easier customization.
• Video controls like play, pause, fullscreen, mute, and loop are now available in the context menu, even on sites like Instagram and TikTok where custom video players previously blocked access to them.
• In Private Browsing windows, you can now temporarily disable tracker blocking for a tab if it’s causing a site to break. When you reload a page where trackers were blocked, Firefox shows a message offering to reload without the stricter protections. All other tracking protections stay active.
• You can now mute your browser from the address bar: type “mute” (or “shush” or “sssh”) and use the address bar quick action to silence every tab currently playing sound across all Firefox windows.
• Improved support for more advanced cursor movement commands, including those relating to paragraph boundaries, on macOS.
• On Windows and Linux, you can now copy links via the tab context menu by right-clicking a tab and selecting Share > Copy Link, making it easy to copy a link without switching to the tab first. When multiple tabs are selected, you can copy all selected links at once. Windows users still retain access to Microsoft sharing options from the Share menu.
• A “Send tab” toolbar button is now available which can be added via More Tools > Customize Toolbar.
• The following languages are now available for Translations:
  • Basque
  • Galician
• Firefox builds in Croatian, English (UK), Georgian, Persian, Slovenian, Tajik, Tamil, Tibetan, Turkish, Welsh, and Xhosa now come with a built-in dictionary for the Firefox spellchecker.

Changed

• Site zooming via keyboard or mouse now offers more zoom levels in smaller increments than before.
• When a PDF or other file that Firefox opens directly finishes downloading, it now opens in a background tab if you’ve switched tabs or closed the original page.
• The Tabs from Other Devices panel in the sidebar now lets you open tabs in a new tab or a new container tab from the context menu.

HTML5

• Web Notifications can now have action buttons via the actions option. They appear as buttons below the notification text or in the Options list on macOS.
• The field-sizing property is now available, allowing form controls to adjust in size to fit their contents.
• Firefox now supports the WebAuthn Related Origin Request feature, which simplifies login flows by making Passkeys usable from multiple domains.
• The Pointer Lock API now supports the unadjustedMovement option, allowing sites to receive raw mouse-movement data unaffected by OS-level acceleration.

Developer

• Developer Tools now have an option in the Settings panel to toggle the display of comment nodes in the Inspector.

Fixed

• Fixed an issue where the Paste option could be missing from context menus when editing content on sites such as Squarespace, LinkedIn, and eBay.
• Improved dragging images from Firefox to the desktop or Finder on macOS — images now save reliably and land where you drop them.
• In multiple monitor situations, the About Firefox window now more reliably opens on the display with the most recently used Firefox window.
• Fixed arrow-key text navigation and word selection commands that moved in the wrong direction in right-to-left text on macOS and Linux.
• Various security fixes.

Labs

• Firefox now offers experimental support for the new JPEG XL image format, which generally provides better compression than WebP, JPEG, PNG, and GIF and is designed to supersede them. You can enable it from the Firefox Labs panel in Settings.

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