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CHANGELOG

What's New in version 5.43.6522:

  • Amended Privacy menu in CCleaner Free to include opt out of sharing usage data with third parties for analytics purposes

What's New in version 5.43.6520:

  • Removed Font Cache cleaning temporarily while we resolve an incompatibility with the Windows 10 April Update
  • Added preference to select the level of detail on the Cleaning Results screen
  • Added new Privacy menu

What's New in version 5.42.6499:

Browser Cleaning:

  • Fixed a critical issue where very long float values were saved in scientific format, causing the Chrome profile to be lost
  • Fixed a critical issue where systems using non-standard decimal separators caused data to be stored incorrectly, causing the Chrome profile to be lost

What's New in version 5.42.6495:

Browser Cleaning:

  • Internet Explorer: Fixed a bug where cleaning Temporary Internet Files left some files behind
  • IE/Edge: Enhanced cleaning of YouTube viewing history (thanks alhazred!)

Cookies:

  • Search terms are now highlighted in the results list

General:

  • Where appropriate, CCleaner Free may recommend improvements to your systemís antivirus protection

Installer:

  • Fixed an issue where localized text was overlapping in the Professional Edition installer

What's New in version 5.41.6446:

UI:

  • NEW! Cleaning results now displayed as a Cleaning Summary (Free and Professional versions only)
  • NEW! Product tips to help users discover less visible features
  • NEW! Fresh, clean Upgrade page design

Browser Cleaning:

  • Edge/Internet Explorer: Fixed cleaning of cookie and icon file types on Windows 10

Localization:

  • Added improved Estonian translations

Technology:

  • Added support for Sciter: a lightweight, embeddable HTML/CSS/script engine for modern UI development

What's New in version 5.40.6411:

Browser Cleaning:

  • Edge: Added new 'Set aside tabs' cleaning rule

Windows Cleaning:

  • Added warning for 'Old prefetch data' cleaning rule

    General:

  • Minor improvements to user interface
  • Minor bug fixes

    What's New in version 5.39.6399:

    Disk Analyzer:

    • Fixed a rare crash where a UI layer was still active

    General:

    • Minor user interface improvements
    • Minor bug fixes

    What's New in version 5.38.6357:

    Browser Cleaning:

    • Edge: Session clean no longer removes set-aside tabs
    • Chrome: Added support for cleaning cookies from Local Storage

    Cookies:

    • Chrome Local Storage Cookies can now be managed from Cookie Manager

    Windows:

    • CCleaner no longer cleans the list of files waiting to be renamed

    Installer:

    • Fixed 'Error opening file for writing' error

    General:

    • Fixed a library dependency that was preventing CCleaner from opening on Wndows XP in some cases
    • Fixed a rare case where CCleaner could check for updates multiple times in a short space of time

    What's New in version 5.37.6309:

    • Edge: Session clean no longer removes set-aside tabs
    • Firefox: Fixed an issue where some favicons were still being cleaned

    What's New in version 5.36.6278:

    Browser Cleaning:

    • Firefox: updated Session cleaning rule to support changes in Firefox 56.0
    • Chrome (& Chromium): updated Internet History cleaning rule to clean user activity data
    • Opera: updated Internet History cleaning rule to clean user activity data

    Default Cleaning Rules:

    • Windows Explorer: Most Recently Used documents and other MRU files no longer cleaned by default
    • Windows Defender: Scan history no longer cleaned by default
    • Microsoft Office: MRUs no longer cleaned by default
    • Edge, Chrome/Chromium, Firefox, Opera, Safari, Thunderbird: Current session data no longer cleaned by default

    Emergency Updater:

    • Added new executable: 'CCUpdate.exe'
    • Added new Windows Scheduled Task: 'CCleaner Update'

    What's New in version 5.35.6210:

    • All builds signed with new Digital Signatures

    What's New in version 5.34.6207:

    Browser Cleaning:

    • Firefox: Internet History cleaning rule no longer removes Favicon content

    General:

    • Minor GUI improvements
    • Minor bug fixes

    What's New in version 5.33.6162:

    Settings:

    • Fixed an issue where Automatic Update continued to inform users of an existing update after the setting had been disabled

    Browser Cleaning:

    • Updated Edge cookie cleaning definitions to include new tables from Microsoft
    • Fixed an issue in Firefox where extensions could not be deleted due to withdrawal of support for Netscape Plugin API
    • Fixed an issue in Firefox and Thunderbird where cleaning 'Site Preferences' would also clean 'Last Download Location'

    Browser Plugins:

    • Browser Plugins list now saved as browserplugins.txt (not startup.txt)

    Disk Analyzer:

    • Fixed an issue where analysis results did not display the full filepath

    Stability:

    • Improved CCleaner launch sequence to resolve a UI lock

    What's New in version 5.32.6129:

    Browser Cleaning

    • Updated Firefox History cleaning definitions to correctly remove items with associated favicons
    • Updated Chrome History cleaning definitions to restore removal of 'Other Search Engines'
    • Restored support for cleaning 'Last download location' in Edge
    • Restored support for cleaning 'Last download location' in Firefox

    Windows Cleaning

    • 'Recent Documents' rule no longer removes items that have been 'pinned' in MS Office applications

    What's New in version 5.31.6105:

    • Improved Windows 10 Creators support
    • Improved Firefox History cleaning
    • Improved Chrome Cache and History cleaning
    • Optimized Scheduling functionality (Professional only)
    • Improved high-DPI support
    • Minor GUI improvements
    • Minor bug fixes

    What's New in version 5.30.6065:

    • Improved Edge Cookie cleaning
    • Updated Internet Explorer 10 and 11 History cleaning
    • Updated Thunderbird 52 History cleaning
    • Updated Windows Explorer MRU Cache cleaning
    • Improved SSD detection algorithm
    • Optimized Update Checking process
    • Minor GUI improvements
    • Minor bug fixes

    What's New in version 5.29.6033:

    • Improved Windows 10 Creators Update compatibility
    • Updated Edge History and Session cleaning
    • Updated Internet Explorer 10 and 11 Cache cleaning
    • Updated Firefox History and Cache cleaning
    • New Scheduling section (Professional only)
    • Updated various languages
    • Minor GUI improvements
    • Minor bug fixes

    What's New in version 5.28.6005:

    • Improved Chrome and Opera History cleaning
    • Improved Firefox Session and Cache cleaning
    • Updated Windows Explorer MRU cache cleaning
    • Improved 64-bit build architecture on Windows 10
    • Optimized Auto Update process (Professional only)
    • Updated ZoneAlarm cleaning
    • Minor GUI improvements
    • Minor bug fixes

    What's New in version 5.27.5976:

    • Improved Firefox and Chrome History cleaning
    • Improved Opera Beta cleaning
    • Improved Windows 10 Support
    • Improved Uninstall tool version sorting
    • Updated internal architecture
    • Added Foxit Reader 8.0 cleaning
    • Minor GUI improvements
    • Minor bug fixes

    What's New in version 5.26.5937:

    • Improved Firefox History and Session cleaning
    • Improved Opera History cleaning
    • Improved Thunderbird Session cleaning
    • Optimized 64-bit build architecture
    • Updated various translations
    • Minor GUI improvements
    • Minor bug fixes

    What's New in version 5.25.5902:

    • Added support for Firefox Web Extensions
    • Improved Firefox History and Cache cleaning
    • Improved Chrome and Opera Session cleaning
    • Improved Edge Extensions management
    • Improved DPI awareness and support
    • Minor GUI improvements
    • Minor bug fixes

    What's New in version 5.24.5839:

    • Improved Firefox History cleaning
    • Improved Opera and Vivaldi Session cleaning
    • Updated Internet Explorer and Edge Cache cleaning
    • Updated Windows Explorer MRU Cache cleaning
    • Improved Monitoring notifications
    • Minor GUI improvements
    • Minor bug fixes

    What's New in version 5.23.5808:

    • Improved Microsoft Edge and Internet Cache cleaning
    • Updated Microsoft Edge Tab cleaning
    • Improved Firefox History and Session cleaning
    • Optimized Silent Update functionality (Professional only)
    • Updated various translations
    • Minor bug fixes
    • Minor GUI improvements

    What's New in version 5.22.5724:

    • Improved Windows 10 Anniversary Edition support
    • Improved Microsoft Edge Cookie and History cleaning
    • Updated Firefox extension management
    • Improved 64-bit build architecture on Windows 10
    • Updated ZoneAlarm 2016 cleaning
    • Minor bug fixes
    • Minor GUI improvements

    What's New in version 5.21.5700:

    • Improved Chrome 52 History and Cache cleaning.
    • Updated DOMStore cookie cleaning.
    • Improved Auto-Update checking process.
    • Improved crash reporting architecture.
    • Updated Xilisoft Video Converter cleaning.
    • Improved localization and language support.
    • Minor GUI improvements.
    • Minor bug fixes.

    What's New in version 5.20.5668:

    • Improved Firefox Internet Cache cleaning
    • Improved Chrome Download History cleaning
    • Added Vivaldi browser cleaning
    • Improved DPI awareness and high DPI support
    • Added Turkmen translation
    • Minor bug fixes and GUI improvements

    What's New in version 5.19.5633:

    • Improved Firefox and Chrome History cleaning.
    • Improved Windows 10 MRU cache cleaning.
    • Optimized Browser Plugin detection routine.
    • Improved System Monitoring (Professional only).
    • Improved Window resizing and DPI support.
    • Improved Unicode text support.
    • Minor GUI improvements.
    • Minor bug fixes.

    What's New in version 5.18.5607:

    • Improved Microsoft Edge Cache and History cleaning.
    • Improved Firefox 46 Session cleaning.
    • Optimized detection and cleaning of portable browsers.
    • Improved Browser Monitoring functionality (Professional only).
    • Improved Unicode support in Startup and Browser Plugin management.
    • Improved localization support.
    • Minor GUI improvements.
    • Minor bug fixes.

    What's New in version 5.17.5590:

    • Improved Firefox 45 cleaning.
    • Improved Google Chrome Extension management.
    • Improved Windows Store apps Uninstall tool (Windows 8.1 and 10).
    • Optimized Start-up Items and Browser Plugins detection.
    • Improved localization and language support.
    • Minor GUI improvements.
    • Minor bug fixes.

    What's New in version 5.16.5551:

    • Added Opera GPU and Application cache cleaning.
    • Improved Google Chrome cleaning: IndexedDB, Quote Manager DB and Service Worker cache.
    • Improved Microsoft Edge Temporary Files cleaning.
    • Update Google Chrome Browser Plug-in management.
    • Improved keyboard navigation.
    • Updated various translations.
    • Minor GUI improvements.
    • Minor bug fixes.

    What's New in version 5.15.5513:

    • Updated Google Chrome cleaning: Cache, Session and History
    • Improved Firefox Cookie detection
    • Added Disk Analyzer search feedback
    • Improved System and Browser Monitoring (Professional only)
    • Improved Media Player Classic cleaning
    • Improved localization and language support
    • Minor GUI improvements
    • Minor bug fixes

    What's New in version 5.14.5493

    • New Browser Plugins section for browser start up management.
    • Improved Google Chrome and Opera session cleaning.
    • Improved Disk Analyzer file scanning process.
    • Improved TeamViewer and PDF Creator cleaning.
    • Updated exception handling and reporting architecture.
    • Updated various translations.
    • Minor GUI improvements.
    • Minor bug fixes.

    What's new in version 5.13.5460:

    • Added Opera and Chrome Media Cache cleaning.
    • Improved Chrome Extension and Cache cleaning.
    • Improved Windows 10 Registry cleaning.
    • Optimized 64-bit build architecture.
    • Improved Auto-Update checking process.
    • Improved Unicode text support.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's new in version 5.12.5431:

    • Improved Firefox 42 Cache cleaning.
    • Improved Google Chrome Download History cleaning.
    • Improved Skip UAC on Windows 10.
    • Improved detection and cleaning of portable browsers.
    • Optimized cleaning rules loading routine.
    • Improved localization and language support. *END*
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 5.11.5408:

    • Added Windows Store apps to Uninstall tool (Windows 8, 8.1 and 10).
    • Improved Google Chrome Download History cleaning.
    • Improve Firefox 41 cleaning.
    • Optimized Start-up Items detection routine.
    • Improved keyboard navigation and shortcuts.
    • Added Microsoft Office 2016 and Camtasia Studio 8.0 cleaning.
    • Updated various translations.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 5.10.5373

    • Improved Microsoft Edge Cookie management.
    • Optimized internal architecture for faster start up.
    • Added Chrome extension cache and cookie cleaning.
    • Improved Firefox session cleaning.
    • Added Firefox HSTS (HTTP Strict Transport Security) cookie cleaning.
    • Improved Intelligent Cookie Scan.
    • Improved Window resizing and DPI support.
    • Added Corsican translation.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 5.09.5343:

    • Improved Microsoft Edge cleaning.
    • Faster UI and styling improvements.
    • Improved Windows 10 Registry detection and cleaning.
    • Improved Internet Explorer 11 DOMStore cleaning.
    • Optimized 64-bit build architecture for Windows 10.
    • Improved Paint.NET and Malwarebytes Anti-Malware cleaning.
    • Improved localization and language support.
    • Minor bug fixes.

    What's New in version 5.08.5308:

    • Improved Windows 10 (10240 RTM build) compatibility.
    • Improved Microsoft Edge Cache and Saved Password cleaning.
    • Improved Opera 30 Session cleaning.
    • Added Microsoft Edge Browser Monitoring (CCleaner Professional only).
    • Added 'Open CCleaner' to System and Browser Monitoring (CCleaner Professional only).
    • Improved Include and Exclude Wildcard support.
    • Added Foxit Reader 7 and RealTimes cleaning.
    • Improved Avira Antivirus, BlueStacks and Media Player Classic cleaning.
    • Updated various translations.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 5.07.5261:

    • Improved Microsoft Edge (Spartan / IE 12) cleaning.
    • Improved Google Chrome Internet Cache and Session cleaning.
    • Added Firefox Web Apps start-up management.
    • Improved Windows 10 Recycle Bin and Delayed cleaning support.
    • Improved Skip UAC functionality for domain accounts.
    • Added Adobe Reader DC cleaning.
    • Updated various translations.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 5.05.5176:

    • Improved Windows 10 (build 10049) compatibility.
    • Improved Internet Explorer and Firefox Startup Items detection.
    • Improved Opera Cache and History cleaning.
    • Improved context menu management.
    • Improved DPI awareness and high DPI support.
    • Improved Unicode text support.
    • Updated various translations.
    • Minor GUI improvements.
    • Minor bug fixes.

    What's New in version 5.04.5151:

    • Added Include items option to ignore newer files.
    • Improved Opera history cleaning.
    • Improved Skip UAC functionality.
    • Optimized system restore detection routine.
    • Improved small screen size support.
    • Improved localization and language support.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 5.03.5128:

    • Added Google Chrome IndexedDB cleaning.
    • Improved Windows 10 (build 9926) compatibility.
    • Improved Firefox and Google Chrome session cleaning.
    • Improved Unicode support in Startup tool.
    • Improved keyboard navigation and shortcuts.
    • Updated various translations.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 5.02.5101:

    • Improved Firefox Local Storage and Cookie cleaning.
    • Improved Google Chrome 64-bit support.
    • Improved Firefox Download History analysis and cleaning.
    • Optimized Disk Analyzer scanning process.
    • Improved detection and cleaning of portable browsers.
    • Updated various translations.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 5.01.5075:

    • New Disk Analyzer tool.
    • Improved Firefox 34 cleaning.
    • Improved Opera History cleaning.
    • Optimized Memory and CPU usage.
    • Improved localization support.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 5.00.5050:

    • New improved GUI.
    • Improved internal architecture for better performance.
    • Added Google Chrome plugin management.
    • Improved Google Chrome Startup item detection.
    • Optimized automatic updates for Pro version.
    • Improved system restore detection routine.
    • Updated exception handling and reporting architecture.
    • Optimized 64-bit builds on Windows 8, 8.1 and 10.
    • Updated various translations.
    • Many performance improvements and bug fixes.

    What's New in version 4.19.4867:

    • Added Windows 10 Preview compatibility.
    • Improved Opera 25 Cache cleaning.
    • Improved exception handling and reporting architecture.
    • Improved Auto-Update checking process.
    • Updated various translations.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 4.18.4844:

    • Added Active System Monitoring for Free users
    • Improved Firefox Saved Password cleaning.
    • Improved Opera History cleaning.
    • Improved 64-bit build architecture for Window 8 and 8.1.
    • Added Ashampoo Burning Studio 14, XnView and FastStone Capture cleaning.
    • Improved localization support.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 4.17.4808:

    • Added Google Chrome and Opera GPU cache cleaning.
    • Improved Google Chrome and Opera Download History cleaning.
    • Improved Firefox Aurora session cleaning.
    • Improved Firefox and Google Chrome Startup items detection.
    • Added PhotoScape, BlueStacks and ManyCam cleaning.
    • Improved AntiVir Desktop and Wondershare cleaning.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 4.16.4763:

    • Improved Google Chrome 36 cleaning and start-up management.
    • Improved Firefox browsing cache cleaning.
    • Added Repair option to Uninstall tool.
    • Improved 64-bit build architecture on Windows 7 and 8.
    • Improved Startup Item tool compatibility.
    • Added Teamviewer, Microsoft One Drive, Real VNC 5, Tag & Rename and Tango cleaning.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 4.15.4725:

    • Added Google Chrome 64-bit support.
    • Improved memory usage and management architecture.
    • Added Yandex browser cleaning.
    • Improved Wipe Free Space algorithm.
    • Added SnagIt 12, Format Factory, Nitro PDF Reader and Virtual DJ cleaning.
    • Added Social Media links.
    • Updated various translations.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 4.14.4707:

    • Improved Firefox and Mozilla based browser Cookie cleaning.
    • Improved Startup item Unicode support.
    • Improved Operating System detection.
    • Added Cyberfox browser cleaning.
    • Improved 64-bit Registry detection and cleaning architecture.
    • Improved skip UAC warning for Monitoring (CCleaner Professional only).
    • Added PowerArchiver 2013, Nitro Pro 9 and Stardock WindowBlinds cleaning.
    • Improved Microsoft Office 2010, Foxit Reader 6, AVG AntiVirus 8, 9, 10, 2012 and 2013 cleaning.
    • Minor GUI Improvements.
    • Minor bug fixes.

    What's New in version 4.13.4693:

    • Added Windows 8.1 Update 1 and Server 2012 R2 Update 1 compatibility.
    • Improved Chrome cleaning: Internet History, Last Download Location and Startup item management.
    • Improved Opera 15 and newer cleaning: Internet History, Last Download Location and Startup item management.
    • Added Firefox plugin activation mode support.
    • Improved handling of removed and unmounted disks.
    • Improved Windows keyboard shortcut support.
    • Improved Shutdown after cleaning and /AUTO command-line.
    • Added Wondershare Video Converter Pro, Aimersoft Video Converter Ultimate, Real Player Cloud cleaning.
    • Improved Java, Windows Defender, FrostWire, CuteFTP 9, Winamp, FileZilla, SUPERAntiSpyware, OpenOffice 4 cleaning.
    • Added Mongolian language.
    • Minor GUI Improvements.
    • Minor bug fixes.