That’s where the new Firefox add-on History Tree comes into play. History Tree can generated a tree structure from the Firefox history in realtime. It can either visualize the history of one tab at a time or all tabs at once.

The name and time of each website are displayed in rectangles on the screen. Connections visualize that websites have been opened after each other. A color code is being used to provide additional information:

• Orange: Active Firefox Tab
• Yellow: Open Tabs
• Blue: Closed Tabs
• White: Pages that can be accessed with the back and forward buttons in Firefox
• Gray: Pages that cannot be accessed with the back and forward buttons

A click on the question mark will display a preview screenshot of the selected website on the same screen while a click on the triangle hides the sub-pages from the display and replacing them with a number representing their amount. Websites can be opened by left-clicking on their boxes in the history tree window.

Filters are available on top to display specific tabs only. Those can be open tabs, open pages, selected tabs or closed tabs. A search aids the user in finding information faster.

It is furthermore possible to change the tree view to a thumbnail view of the visited websites instead. This will display all websites as thumbnail images in the same window.

History Tree distinguishes between different Firefox windows, something that the default Firefox history manager is not offering as it only displays a combination of all visited pages regardless of the window they have been opened in.

One thing that would be nice would be the configuration of a default action when left-clicking on a thumbnail or box in the History Tree window so that users could open sites with just one click instead of having to work with the selection box all the time.

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Historian is a free portable software program that can process the browsing history of several popular web browsers and export the information into csv or text format. Supported browsers are Microsoft’s Internet Explorer, Mozilla Firefox 2 and 3, Google Chrome and Opera. This includes information about bookmarks, the browsing history, downloads, cookies and cache information.

The usability of the software program is not optimal. One has to drag and drop the files that are storing the information from the web browser’s directories into the interface to process them. This can obviously only be done if the user knows the location and names of those files. It is likely that only a minority knows that Firefox is storing its bookmarks in a file called places.sqlite or that Opera is storing information about file downloads in download.dat.

The only other limitation is that the only files of the same type can be analyzed at the same time. There is practically no way of adding all browsing history files of various installed web browsers in one go to the application because of their different formats. The workaround would be to create the csv files (or text) for each source file and copy paste the information into one big csv file in the end.

It would be a great improvement if the software developer would add an automatic scan of the system to the software program. It would also be nice if different files could be queued in the application so that they could be processed together.

Historian on the other hand is a versatile portable program that can identify the browsing history of all popular web browsers with the exception of Safari.

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