Firefox Notes

First offered to Release channel users on August 6, 2013

Check out "What’s New" and "Known Issues" for this version of Firefox below. As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla. If interested, please see the complete list of changes in this release.

We'd also like extend a special thank you to all of the new Mozillians who contributed to Firefox 23!

New Features

  • New

    Long press Reader Mode icon to add article to Reading List (try it!)

  • New

    Added Serif/Sans Serif font toggle to Reader Mode

  • New

    Added hu and tr to Android multi-locale builds

  • New

    Implemented switch-to-tab

  • New

    Users can now specify a default search engine

  • New

    Added a setting to let users display URLs in the title bar instead of page titles

  • New

    Preliminary implementation of Firefox Health Report for Android (see FAQ)

  • New

    Add pages to reading list on devices incapable of accessing Reader Mode

  • New

    Dynamic toolbar hides navigation bar when scrolling down page content

  • New

    Basic support for subscribing to feeds (RSS/Atom) with long-tap in address bar

  • Changed

    <input type='file'> rendering improvements (see bug 838675)

  • Changed

    "Load images automatically" and Always show the tab bar" checkboxes removed from preferences and reset to defaults. Want to hide one tab? Try this add-on.

  • Changed

    Replace fixed-ratio audio resampler in webrtc.org capture code with Speex resampler and eliminate pseudo-44000Hz rate

  • Changed

    CSP policies using the standard syntax and semantics will now be enforced

  • Changed

    Awesomescreen remembers user entered search terms

  • Changed

    Users can now switch to a new search provider across the entire browser

  • Changed

    Enabled DXVA2 on Windows Vista+ to accelerate H.264 video decoding

  • Changed

    Simplified interface for notifications of plugin installation

  • Changed

    Improved about:memory's functional UI

  • Changed

    Updated Firefox Logo

  • Changed

    "Enable JavaScript" preference checkbox has been removed and user-set values will be reset to the default

  • Developer

    Implemented a global browser console

  • Developer

    Write more accessible pages on touch interfaces with new ARIA role for key buttons

  • Developer

    Social share functionality

  • Developer

    HTML5 <input type="range"> form control implemented

  • Developer

    Added unprefixed requestAnimationFrame

  • Developer

    New feature in toolbox: Network Monitor

  • Developer

    Dropped blink effect from text-decoration: blink; and completely removed <blink> element

  • Fixed

    Various security fixes

Known Issues

  • unresolved

    Some recent changes in the Google layout and CSS may cause issues in non-webkit browsers like Firefox

  • unresolved

    'Video can't be played because the file is corrupt' on some HTC Gingerbread (Android 2.3) devices

  • unresolved

    Private Browsing - can't see URL bar text on variant of HTC Sense UI (Froyo)

  • unresolved

    Moving Firefox to background while playing a flash video in full screen mode and bring it back to view will freeze the app

  • unresolved

    Users on Android 4.3 will not be able to copy, cut, or select within the address bar

  • unresolved

    Font inflation may sometimes render inconsistent font sizes on certain pages

  • unresolved

    Firefox Sync will not behave as expected if multiple Firefox channels are installed on a single device

  • unresolved

    Startup crash on LG Optimus Black (LG P970) running GB

  • unresolved

    Browser is unusable on the Nexus 10 tablet with Android 4.3