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| 26.0 | 10 ธันวาคม 2556 | 26.0 |  All Java plug-ins are defaulted to 'click to play'  Password manager now supports script-generated password fields  Updates can now be performed by Windows users without write permissions to Firefox install directory (requires Mozilla Maintenance Service)  Support for H.264 on Linux if the appropriate gstreamer plug-ins are installed  Support for MP3 decoding on Windows XP, completing MP3 support across Windows OS versions  CSP implementation now supports multiple policies, including the case of both an enforced and Report-Only policy, per the specification  Social API now supports Social Bookmarking for multiple providers through its SocialMarks functionality  Math.ToFloat32 takes a JavaScript value and converts it to a Float32, whenever possible  There is no longer a prompt when websites use appcache  Support for the CSS image orientation property  New App Manager allows you to deploy and debug HTML5 webapps on Firefox OS phones and the Firefox OS Simulator  IndexedDB can now be used as a "optimistic" storage area so it doesn't require any prompts and data is stored in a pool with LRU eviction policy, in short temporary storage  Fixed: When displaying a standalone image, Firefox matches the Exif orientation information contained within the JPEG image  Fixed: Text Rendering Issues on Windows 7 with Platform Update KB2670838 (MSIE 10 Prerequisite) or on Windows 8.1  Improved page load times due to no longer decoding images that are not visible  Fixed: AudioToolbox MP3 backend for OS X  Various security fixes |
| 26.0.1 | 20 ธันวาคม 2556 | 26.0 |  Fixed the screen that distorts on some devices after tapping on search suggestion.  Fixed: About:home is missing translations in some locales. Most affected are: ca, ga-IE, hu, ko, pt-BR, pt-PT, ro, and uk  Fixed: In some cases, the clip set on the page doesn't update when the addressbar hides  Fixed: Invalid position:fixed rendering |
| 27.0 | 4 กุมภาพันธ์ 2557 | 27.0 |  You can now run more than one service at a time with Firefox SocialAPI, allowing you to receive notifications, chat and more from multiple integrated services  Enabled TLS 1.1 (RFC 4346) and TLS 1.2 (RFC 5246) by default  Added support for SPDY 3.1 protocol  Ability to reset style sheets using 'all:unset'  You can now choose to deobfuscate javascript in the debugger  Added support for scrolled fieldsets  Implemented allow-popups directive for iframe sandbox, enabling increased security  CSS cursor keywords -moz-grab and -moz-grabbing have been unprefixed  Added support for ES6 generators in SpiderMonkey  Implemented support for mathematical function Math.hypot() in ES6  Dashed line support on Canvas  Had Azure/Skia content rendering working on Linux  Security fixes |
| 27.0.1 | 13 กุมภาพันธ์ 2557 | 27.0 |  Fixed stability issues with Greasemonkey and other JavaScript that used ClearTimeoutOrInterval  Fixed: JavaScript math correctness issue (bug #941381) |
| 28.0 | 18 มีนาคม 2557 | 28.0 |  VP9 video decoding implemented  Mac OS X: Notification Center support for web notifications  Volume control for HTML5 audio/video  Support for Opus in WebM  Now that SPDY/3 is implemented support for SPDY/2 has been removed and servers without SPDY/3 will negotiate to HTTP/1 without any penalty  Support for MathML 2.0 'mathvariant' attribute  Background thread hang reporting  Support for multi-line flexbox in layout  Security fixes |
| 28.0.1 | 24 มีนาคม 2557 | 28.0 |  Fixed: No H.264 video playback on several Galaxy devices  Fixed: Mobile-only security fix for "file:paths" |
| 29.0 | 29 เมษายน 2557 | 29.0 |  Significant new customization mode  A new menu sits in the right hand corner of Firefox and includes popular browser controls  New tabs provide an overall smoother look and fade into the background when not active  An interactive onboarding tour to guide users through the new Firefox changes  Added the ability to set up Firefox Sync by creating a Firefox account  Gamepad API finalized and enabled  Malay [ma] locale added  Clicking on a W3C Web Notification will switch to the originating tab  'box-sizing' (dropping the -moz- prefix) implemented  Console object available in Web Workers  Promises enabled by default  SharedWorker enabled by default  <input type="number"> implemented and enabled  <input type="color"> implemented and enabled  Enabled ECMAScript Internationalization API  Add-on bar has been removed, content moved to navigation bar  No longer possible to move tabs from the top of the browser without an add-on |
| 29.0.1 | 9 พฤษภาคม 2557 | 29.0 |  Fixed: An issue with pdf.js printing white pages  Fixed: Tabs not visible with dark themes under Windows 8.1  Fixed: Session Restore failed with a corrupted sessionstore.js file  Fixed: Seer disabled by default |
| 30.0 | 10 มิถุนายน 2557 | 30.0 |  Sidebars button in browser chrome enables faster access to social, bookmark, & history sidebars  Mac OS X command-E sets find term to selected text  Support for GStreamer 1.0  Disallowed calling WebIDL constructors as functions on the web  With the exception of those bundled inside an extension or ones that are whitelisted, plugins will no longer be activated by default  Fixes to box-shadow and other visual overflow  Mute and volume available per window when using WebAudio  Background-blend-mode enabled by default  Use of line-height allowed for <input type="reset|button|submit">  ES6 array and generator comprehensions implemented  Error stack now contains column number  Support for alpha option in canvas context options  Fixed: Ignored autocomplete="off" when offering to save passwords via the password manager  Fixed TypedArrays that don't support new named properties |
| 31.0 | 22 กรกฎาคม 2557 | 31.0 |  Adds the search field to the new tab page  mozilla::pkix as default certificate verifier  Blocks malware from downloaded files  Partial implementation of the OpenType MATH table  Support of Prefer:Safe http header for parental control  audio/video .ogg and .pdf files handled by Firefox if no application specified (Windows only)  Upper Sorbian [hsb] locale added  Removal of the CAPS infrastructure for specifying site-specific permissions (via capability.policy.* preferences). Most notably, attempts to use this functionality to grant access to the clipboard will no longer work. The sole exception is the checkloaduri permission, which may still be used as before to allow sites to load ไฟล์:// URIs.  WebVTT implemented and enabled  CSS3 variables implemented  Developer Tools: Add-on Debugger  Developer Tools: Canvas Debugger  New Array built-in: Array.prototype.fill()  New Object built-in: Object.setPrototypeOf()  CSP 1.1 nonce-source and hash-source enabled by default  Developer Tools: Eyedropper tool added to the color picker  Developer Tools: Editable Box Model  Developer Tools: Code Editor improvements  Developer Tools: Console stack traces  Developer Tools: Copy as cURL  Developer Tools: Styled console logs  navigator.sendBeacon enabled by default  Dialogs spawned from the onbeforeunload event no longer block access to the rest of the browser  Fixed: Search for partially selected link text from context menu |
| 31.1.0esr | 2 กันยายน 2557 | 31.0 |  Security fix |
| 31.1.1esr | 24 กันยายน 2557 | 31.0 |  Various security fixes |
| 31.2.0esr | 14 ตุลาคม 2557 | 31.0 |  Security fix  Fixed: Invalid certificate issue with mozilla::pkix  Fixed: Importing an RSA private key fails if p < q |
| 31.3.0esr | 1 ธันวาคม 2557 | 31.0 |  Security fix  Fixed: @ JS::Handle::operator JSObject* const&() startup crash  Fixed: Intermittent failures in add-ons manager mochitest-browser tests  Fixed: Bad CPU type in executable running mochitests on yosemite  Fixed: Error building nsChildView.mm on OS X 10.10  Fixed: Wrong CPU features detection on some x86 CPUs  Fixed: Build error on Yosemite  Fixed: XMLHttpRequest.send({}) should not throw |
| 31.4.0esr | 13 มกราคม 2558 | 31.0 |  Security fix |
| 31.5.0esr | 24 กุมภาพันธ์ 2558 | 31.0 |  Security fix |
| 31.5.2esr | 20 มีนาคม 2558 | 31.0 |  Security fix for an issue disclosed at HP Zero Day Initiative's Pwn2Own contest |
| 31.5.3esr | 21 มีนาคม 2558 | 31.0 |  Security fix for an issue disclosed at HP Zero Day Initiative's Pwn2Own contest |
| 32.0 | 2 กันยายน 2557 | 32.0 |  New HTTP cache provides improved performance including crash recovery  Integration of generational garbage collection  Public key pinning support enabled  Displays the number of found items in the find toolbar  Easier back, forward, reload, and bookmarking through the context menu  Views historical use information for logins stored in password manager  Lower Sorbian [dsb] locale added  Removed and turned off trust bit for some 1024-bit root certificates  Performance improvements to Password Manager and Add-on Manager  drawFocusIfNeeded enabled by default  CSS position:sticky enabled by default  mix-blend-mode enabled by default  Vibration API updated to latest W3C spec  box-decoration-break enabled by default  ECMAScript 6 built-in method Array#copyWithin implemented  New Array built-in: Array.from()  navigator.languages property and languagechange event implemented  CSS box-decoration-break replaces -moz-background-inline-policy  HiDPI support in Developer Tools UI  Inspector button moved to the top left  Hidden nodes displayed differently in the markup-view  New Web Audio Editor  Code completion and inline documentation added to Scratchpad  Fixed: Mac OS X: cmd-L does not open a new window when no window is available  Fixed Text Rendering Issues on Windows 7 with Platform Update KB2670838 (MSIE 10 Prerequisite) or on Windows 8.1  Various security fixes |
| 32.0.1 | 10 กันยายน 2557 (Android) 12 กันยายน 2557 (desktop) | 32.0 |  Fixed link tap selection that was offset on some Android devices.  Fixed stability issues for computers with multiple graphics cards  Fixed mixed content icon that may be incorrectly displayed instead of lock icon for SSL sites  Fixed: WebRTC: setRemoteDescription() silently fails if no success callback is specified |
| 32.0.2 | 18 กันยายน 2557 (desktop) | 32.0 |  Fixed corrupt installations causing Firefox to crash on update |
| 32.0.3 | 24 กันยายน 2557 | 32.0 |  Various security fixes |
| 33.0 | 14 ตุลาคม 2557 | 33.0 |  Windows: OMTC enabled by default  OpenH264 support (sandboxed)  Improved search experience through the location bar  Slimmer and faster JavaScript strings  Search suggestions on the Firefox Start (about:home) and new tab (about:newtab) pages  New CSP (Content Security Policy) backend  Support for connecting to HTTP proxy over HTTPS  Improved reliability of the session restoration  Azerbaijani [az] locale added  Proprietary window.crypto properties/functions removed  JSD (JavaScript Debugger Service) removed in favor of the Debugger interface  @counter-style rule from CSS3 Counter Styles specification implemented  DOMMatrix interface implemented  Cubic-bezier curves editor  Displayed which elements have listeners attached  New sidebar which displays a list of shortcuts to every @media rule in the current stylesheet  Paint flashing for browser content repaints  Editable @keyframes rules in the Rules section of the Inspector  CSS transform highlighter in the style-inspector  Fixed incomplete downloads being marked as complete by detecting broken HTTP1.1 transfers |
| 33.0.1 | 24 ตุลาคม 2557 (desktop) | 33.0 |  Fixed: Firefox displays a black screen at startup with certain graphics drivers |
| 33.0.2 | 28 ตุลาคม 2557 (desktop) | 33.0 |  Fixed a startup crash with some combination of hardware and drivers |
| 33.0.3 | 6 พฤศจิกายน 2557 (desktop) | 33.0 |  Blacklisted graphics drivers that were causing black screens with OMTC enabled  Fixed two startup crashes with some combination of hardware and drivers |
| 33.1 | 10 พฤศจิกายน 2557 (Firefox's 10-year anniversary) | 33.0 |  Forget button added  Enhanced tiles  Privacy tour introduced  Adding DuckDuckGo as a search option |
| 33.1.1 | 14 พฤศจิกายน 2557 (desktop) | 33.0 |  Fixed a startup crash |
| 34.0 | 1 ธันวาคม 2557 | 34.0 |  Default search engine changed to Yandex for Belarusian, Kazakh, and Russian locales  Improved search bar (en-US only)  Firefox Hello real-time communication client  Easily switch themes/personas directly in the Customizing mode  Wikipedia search now uses HTTPS for secure searching (en-US only)  Implementation of HTTP/2 (draft14) and ALPN  Recover from a locked Firefox process in the "Firefox is already running" dialog on Windows  Disabled SSLv3  Proprietary window.crypto properties/functions re-enabled (to be removed in Firefox 35)  Firefox signed by Apple OS X version 2 signature  ECMAScript 6 WeakSet Implemented  JavaScript Template Strings Implemented  CSS3 Font variants and features control (e.g. kerning) implemented  WebCrypto: RSA-OAEP, PBKDF2 and AES-KW support  WebCrypto: wrapKey and unwrapKey implemented  WebCrypto: Import/export of JWK-formatted keys  matches() DOM API implemented (formerly mozMatchesSelector())  Performance.now() for workers implemented  WebCrypto: ECDH support  WebIDE: Create, edit, and test a new Web application from your browser  Highlight all nodes that match a given selector in the Style Editor and the Inspector's Rules panel  Improved User Interface of the Profiler  console.table function added to web console  Fixed: CSS transitions start correctly when started at the same time as changes to display, position, overflow, and similar properties  Various security fixes |
| 34.0.5 | 1 ธันวาคม 2557 (desktop) | 34.0 |  Default search engine changed to Yahoo! for North America. |
| 35.0 | 13 มกราคม 2558 | 35.0 |  Firefox Hello with new rooms-based conversations model  New search UI improved and enabled for more locales  Access the Firefox Marketplace from the Tools menu and optional toolbar button  Built-in support for H264 (MP4) on Mac OS X Snow Leopard (10.6) and newer through native APIs  Use of tiled rendering on OS X  Improved high quality image resizing performance  Improved handling of dynamic styling changes to increase responsiveness  Implemented HTTP Public Key Pinning Extension (for enhanced authentication of encrypted connections)  Added support for the CSS Font Loading API  Resource Timing API implemented  CSS filters enabled by default  Changed JavaScript 'let' semantics to match the ES6 specification  Support for inspecting ::before and ::after pseudo elements  Computed view: Nodes matching the hovered selector are now highlighted  Network Monitor: New request/response headers view  Added support for the EXT_blend_minmax WebGL extension  Fixed: Show DOM Properties context menu item in inspector  Reduced resource usage for scaled images  PDF.js updated to version 1.0.907  Non-HTTP(S) XHR now returns correct status code  Various security fixes |
| 35.0.1 | 26 มกราคม 2558 (desktop) 5 กุมภาพันธ์ 2558 (Android) | 35.0 |  Fixed a crash with the Enhanced Steam extension  Fixed a potential startup crash  Fixed Kerberos authentication failure with alias  Fixed SVG / CSS animation regression causing rendering issues on websites like openstreetmap.org  Fixed a crash on Godaddy webmail  Fixed an update failure of document.baseURI to document.location after base tag was removed from DOM for site with a CSP  Fixed a text selection broken with a Right-to-left (RTL) version of Firefox  CSP had a change in behavior with regard to case sensitivity resources loading  Fixed crash with video playback on Asus MeMO Pad 10 and 8, Tesco Hudl, Lenovo Lifetab E models, and several other devices running the Rockchip SoC |
| 36.0 | 24 กุมภาพันธ์ 2558 (desktop) 27 กุมภาพันธ์ 2558 (Android) | 36.0 |  Pinned tiles on the new tab page can be synced  Added full support for HTTP/2  Locale added: Uzbek (UZ)  Remote option removed  No longer accepting insecure RC4 ciphers whenever possible  Phasing out Certificates with 1024-bit RSA Keys  Shut down hangs will now show the crash reporter before exiting the program  Add-on compatibility changed  Support for the ECMAScript 6 Symbol data type added  Unicode-range CSS descriptor implemented  CSSOM-View scroll behavior implemented allowing smooth scrolling of content without custom libraries  Object-fit and object-position implemented.  Isolation CSS property implemented.  CSS3 will-change property implemented.  Changed JavaScript 'const' semantics to conform better to the ES6 specification.  Improved ES6 generators for better performance  Eval sources now appear in the Debugger  DOM Promises inspection  Inspector: More paste options in markup view  CSS gradients work on premultiplied colors  Fixed some unexpected logout from Facebook or Google after restart  Various security fixes |
| 36.0.1 | 5 มีนาคม 2558 (desktop) 6 มีนาคม 2558 (Android) | 36.0 |  Disabled the usage of the ANY DNS query type  Fixed a startup crash with EMET  Fixed the Hello contact that may become inactive until restart  Fixed print preferences that may not be preserved  Fixed Hello contact tabs that may not be visible  Accepted hostnames that include an underscore character ("_")  Fixed the WebGL that may use significant memory with Canvas2d  Option -remote has been restored  Fixed a top crash |
| 36.0.3 | 20 มีนาคม 2558 | 36.0 |  Security fix for an issue disclosed at HP Zero Day Initiative's Pwn2Own contest |
| 36.0.4 | 21 มีนาคม 2558 | 36.0 |  Security fix for an issue disclosed at HP Zero Day Initiative's Pwn2Own contest |
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