The HTTP Archive 1.1 file format is now supported as an export format:

HTTP Archive (.har) files can be opened in HttpWatch Studio:

A reload prompt is displayed if a file has been modified outside HttpWatch Studio:

Any URL can be opened in the current window or a new tab using the URL column's context menu:

The Firefox plug-in now has the same cookie features as the Internet Explorer plug-in. Paths, domains and expiration dates are now displayed for sent cookies in Firefox:

and the 'Clear Recorded Cookies' command is now available on the Tools menu:

The Properties window can now be included on the first page of a print-out:

A new Size column on the POST tab shows the size of POST parameters such as ASP.NET ViewState:

The new Export button on the POST tab allows uploaded values and files to be saved to disk:

The use of keyboard shortcuts in IE and Firefox can be controlled using two new options on Tools->Options->General:

HttpWatch is now supplied with a plug-in for Mozilla Firefox 2.0 and 3.0:

The automation interface has been update to allow the control of HttpWatch within Mozilla Firefox:

The new Visual Studio style tabs in HttpWatch Studio make it easier to switch between log files:

The Properties window displays information about how a log file was recorded. It includes an editable comment field that allows simple annotations to be attached to a file:

New menu items have been added that control how start times are displayed. This can be useful when trying to locate related events across multiple systems, locations and time zones :

For information about new features in version 5 please see 'New in Version 5.x'.