Firefox users have several options at hand to delete private browsing data.
This includes running the browser in private browsing mode, configuring it to delete the data on shutdown or running the clear recent history module manually to delete some or all data this way.
Veteran users may remember a time when the browser displayed a prompt on exit to delete all or select browsing data on shutdown.
This prompt since then has been removed by Mozilla. Firefox users who want to re-enable the prompt in the Firefox browser can install the AskForSanitize add-on to do that. The add-on displays the clear recent history window whenever you close the browser giving you the option to delete some or all history directly then.
Here it is then possible to clear everything or only select data sets. Users can for instance delete the cache, browsing and download history or site preferences in the dialog. The time range to clear pulldown menu can be used to delete data that is older than the selected time range.
In recent versions of the extension, only the time range and clear now button are displayed by default. You may want to click on details to see the various areas that you can clear on exit to make sure only those that you want removed are checked.
The Firefox extension ships with a toolbar button that triggers the delete browsing data prompt on mouse click. It is not added automatically to a toolbar, which means that users need to place it there manually (by right-clicking a toolbar, selecting customize and dragging and dropping the button to the desired location on a Firefox toolbar).
One question that may come up is this: Why would anyone want to display the delete browsing history window on exit if it can be configured to run on exit automatically?
The core reason here obviously would be if the data only needs to be deleted at times and not on all exits of the browser. The automation here is a more comfortable than triggering the deletion dialog manually whenever it is needed.
Which leads directly to the following question: How often do you clear your browsing data?
Advertising revenue is falling fast across the Internet, and independently-run sites like Ghacks are hit hardest by it. The advertising model in its current form is coming to an end, and we have to find other ways to continue operating this site.
We are committed to keeping our content free and independent, which means no paywalls, no sponsored posts, no annoying ad formats or subscription fees.
If you like our content, and would like to help, please consider making a contribution:
Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.