Features

• Added option to control zoom level from the application status bar.
• Fiddler will now automatically try to use the Microsoft Edge browser when the "Open Browser" button is clicked, if a Google Chrome installation is not found.

Fixes

• In some cases, the "Save Response body to file" button is missing.
• Wrong screen is shown in some cases after completing the "Filters" wizard on the home screen.
• Error is shown when the user login session has expired instead of simply showing the login screen.

Fixes

• Updated third-party dependencies to mitigate CVE-2023-5217.

Features

• Added the option to persist pre-configured browser data.
• Added confirmation on Remove all button before clearing the captured sessions in the Live Traffic grid.
• Added the option to choose where to install the root certificate authority for Microsoft Windows.

Fixes

• Unclear error message appears if login endpoints are unreachable.
• Unable to use vertical scroll of sessions in the Live Traffic grid in some cases.

Fixes

• Offline support on Windows fails to read the email in some cases.
• Updated third-party dependencies to mitigate CVE-2023-4863.

Features

• Improved raw and bulk edit operations in Composer.
• You can now download shared and updated resources after confirmation by the user.

Fixes

• App freezes for a short time on macOS when opening certain websites.
• Performance is slowed down when capturing a high volume of sessions.

Features

• Upstream proxy information is now shown in the connection popup at the lower right of the application window.
• Added new vertical Composer layout, which can be switched on/off similar to the session inspectors layout.

Fixes

• Default terminal selection window does not have a default option.
• Link to account page for users with expired old subscriptions.
• Application error when trying to share a rule with manual response and no body.
• Remote Device wizard unable to get the names of the local network adapters in some cases.

Features

• Added Remote Device wizard to help mobile and remote computers connect to Fiddler Everywhere.
• Updated HTML page for Fiddler echo service and added new HTML page for testing remote device connectivity.
• You can now automatically disable the option to allow remote computers to reconnect after the application exits.

Fixes

• Do not require Fiddler Root Certificate to be trusted on the local machine in order to connect and inspect traffic from remote devices.

Fixes

• Added privacy policy link in the application Help menu.
• Updated link and description for the privacy policy in the Settings window.

Features

• Custom columns are now available for all sessions tabs.
• Added an indication for when system proxy has been changed.
• Added new Rules action to updating status code.

Fixes

• Failed to set system proxy on macOS in some cases.
• Monaco editor error description popup doesn't show correctly in some cases.
• Double-click doesn't work in saved sessions.
• Leaked proxy is not cleaned up on Windows machine restart.

Features

• Added a new application layout where 'Traffic' and 'Composer' functionalities are split.
• Added a Home section which includes user details and feature wizards.
• Moved system proxy toggle in the toolbar below 'Live Traffic'.
• Added informational dialog when the user enables the system proxy manually.
• Added a '+' button in Composer pane for creating new requests.
• Renamed generated certificate authority to Fiddler Everywhere Root Certificate Authority.
• Now shows Fiddler specific page when opening a preconfigured browser.
• Added official support for HTTP/2.
• You can now edit in the Composer Raw tab.
• Added a separate Cookies tab in Composer.
• Removed the option to act as system proxy by default.
• You can now prevent Microsoft Windows restart or shut down when proxy is set.

Fixes

• Fix colors on certificate badge and tooltip for saved sessions.
• Copy as PowerShell option does not work in some cases.

Features

• Show warning when the user is unable to set the system proxy.
• Updated Sign In screen.
• Disregard current proxy settings if they are invalid.
• Updated gRPC tooltips.
• Notify users earlier if they are unable to use cloud resources in Offline Mode.

Fixes

• Deleting one session from the Live Traffic grid causes Unexpected Error to the Certificate badge.
• Bypass hosts on macOS are not parsed correctly if they are empty.
• Notification for exported certificate does not indicate the location of export.
• Selection of requests in the grid causes the app to freeze in some cases.

Features

• Added the option to install per machine on Microsoft Windows.
• Added Offline support on Windows. You can now use the application in an isolated environment with limited or no internet access.
• You can now set HEX inspector as default when viewing gRPC messages.

Fixes

• Copy as cURL does not work when the URL contains a % symbol.
• Checkbox for accepting EULA is not well visible with the dark theme.
• Quick search does not work properly in some cases.

Features

• Added support for Python requests in Terminal process option.
• Added a proxy troubleshooting link when no traffic can be captured.
• You can now set filters on custom columns.

Fixes

• App remains on white screen in some cases.
• TLS version is not copied when "Copy Full Summary" is used.
• Password dialog for saved sessions hangs in some cases.
• Write permissions for cloud resources were lost in some cases after subscription updates.

Fixes

• Fixed issue with TLS handshake on macOS with some older servers.
• Fixed issue when entering the name for a custom session list column.
• Fixed incorrect colors for some icons in the app top toolbar and custom filters menu.

Feature

• Added rules grouping in Rules tab.
• Added support for TLS 1.3.
• Capture gRPC traffic [beta] - Enabled HTTP/2 support to capture gRPC.
• Added the option to capture traffic through a custom terminal - All cURL and Node.js requests executed in the started terminal will be automatically captured by Fiddler Everywhere.
• Added the option to create custom session list columns from request or response headers.
• Added a new rule action: 'Do not decrypt' which helps bypass requests for specific processes or requests to specific hosts or apps that use certificate pinning.
• Show certificate information for saved sessions - The saved sessions will now show you the state of the certificate when the traffic was captured.
• Improved handling of invalid server certificates - A custom Fiddler page is now shown when the connection is insecure, where the user has the option to ignore the error for this domain.
• Improved performance of HEX inspector.
• Updated third-party dependencies.

Fixes

• Unable to load some pages when HTTP/2 is used.
• Memory leak when using the application for longer time.
• Truncate display of very large body contents in inspectors that can make the app unresponsive.

Feature

• You can now add a notification when importing and exporting rules.
• Improved the scroll performance in the sessions grid with lots of sessions.

Fixes

• The host header is ordered incorrectly when looking at the Raw Request Inspector.
• Unable to start the app from a WSL2 terminal.
• Menu items are sometimes doubled in the sessions toolbar dropdown menu.
• Shortcut labels are not visible in some context menus in the sessions grid.
• In very rare cases the app might hang when opening the overview inspector, toggling live traffic capturing, or deleting a rule.

Feature

• Quick search improvements - now searches in all columns and highlights matched data.
• Added option to limit Sessions List Length in the Live Traffic grid.
• Introduced a Timeline in the Overview inspector.
• Added a HEX body inspector.
• Added sorting for saved and shared sessions.
• Updated Sign in screen with more information.
• Added verbose logs for operations related to network adapters.
• Updated several internal dependencies to latest versions.

Fixes

• In some cases, fetch requests copied from the application lead to error for increase of max listeners.
• Copy as Powershell/Fetch/cURL/Python must be disabled on multiple connect sessions selected.
• Maximize/restore icon is incorrect on Windows and Linux.
• Auto theme is not applied on preview when change from dark theme to auto.
• Pseudo-headers are not shown in saved sessions.
• It is not possible to use pseudo-headers in Rules and Filters.
• Missing notification when copy URL/Full summary of any session.
• Start/pause capturing from the tray icon is not working after logout/login.
• Composer's body key-value pairs are always included in the request even when they are unchecked.
• Stop sending Connection: Close header in the response of a CONNECT request.
• Wrong trial length is shown in some cases.

Fixes

• Reauthenticate window sometimes appears after an error during sign in or during application startup.
• Wrong time units visible in Overview Timings panel header.
• Default session list columns do not reset on user request.
• Errors might appear when app starts without internet connectivity.
• Position of some inspector tutorial hints is wrong.

Features

• Improved Filters - Column and advanced filters have been merged and the filtering experience is now more consistent.
• Added the option to Save Filters - You can now set match conditions and save and re-use filters.
• Improved buttons in session list toolbar - Expose the most used buttons and hide the rest in a new dropdown.
• Added the option to copy requests as code - Select Microsoft PowerShell, fetch, cURL or Python script format from the sessions list context menu.
• Added the option to save the Request/Response body as a file - This option is available for the Raw, Preview and Body inspectors.
• Improved Compare Traffic option:
  • Difference in URL protocol now displayed as difference instead of a missing match.
  • Selecting a row with missing match will now show its data in the inspectors.
• Added "Reveal in the list" option in the Compare Sessions tab. This allows you to get back to the original location of the session.
• Improved HTTP/2 support and made the option for enabling HTTP/2 more visible.
• You can now show the HTTP/2 request pseudo headers as part of the Headers section.
• Added new login system and user flow - Use the unified Telerik system.

Fixes

• Context menu hides when app is resized.
• Decoding window not decoding base64 for Unicode characters with more than 1 byte.
• Fiddler Everywhere Certificate name appears as null during installation on Android.
• The two groups in the Compare sessions tab grid are desynced when scrolled.
• Multiple selection is not possible in the Compare sessions tab.
• What's New dialog hides behind the Welcome screen.
• Unable to open some websites using HTTP/1.1 when the stream responses option is on.
• Incorrect data shown in Request Body inspector when switching between different Body inspectors.