Please make a donation through Kampa!, Amazon (recipient Email: You can donate a minimum of 15 yen (15 cents)) or PayPal.Me. The Site Information panel in Firefox tells you about a websites connection security and identity. I invite you to explore and help me translate this add-on in Crowdin. If this function is disabled, the navigation to about:* with the browser's back and forward buttons cannot be blocked. If no operation is performed, the dialog box will not be displayed. For example, click once on the page with the mouse.

Also, for this to work, you have to do something with the page after it's displayed. However, this feature also displays a dialog box when you try to quit the browser.

When a browser's back, forward, or reload button is clicked or a tab is about to be closed, a dialog box can be displayed on the web page asking the user to confirm whether or not to leave the page.

Automatic page transitions by JavaScript may not be blocked. This add-on does not work on special pages such as and about:*. This mainly blocks page transitions when a link is clicked with the mouse.

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