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Understanding the browser.startup.page about:config Entry in Firefox


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about:config Entries

browser.startup.page is one of hundreds of Firefox configuration options, or Preferences, accessed by entering about:config in the browser's address bar.

Preference Details

Category: browser
Preference Name: browser.startup.page
Default Status: default
Type: integer
Default Value: 1


The browser.startup.page Preference in Firefox's about:config interface allows the user to specify which Web page(s) is opened when their browser is initially launched.

How to Use browser.startup.page

The value of browser.startup.page can be set to one of four integers: 0, 1, 2, or 3. When this Preference is set to 0, a blank page (about:blank) is opened upon launch. The default value, which is set to 1, causes Firefox to open whatever page(s) is set as the browser's home page. When the value is set to 2, the Web page that the user last visited is opened. Finally, when the value is set to 3, the user's previous browsing session is restored.

To modify the value of browser.startup.page, follow these steps:

  • Open your Firefox browser.
  • Type about:config in your browser's address (or URL) bar.
  • Hit Enter.
  • A list of Firefox Preferences should now be displayed. Locate the entry with a Preference Name value of browser.startup.page.
  • Double click on this entry. A dialog box should appear prompting you to enter an integer value.
  • Enter the desired value (0, 1, 2, or 3) and click on the OK button.

Related about:config Entries

The following entries are related to the browser.startup.page entry:

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browser.startup.page Related Content

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