Here is the quickest option: Load about:preferences#home in the Firefox address bar. Locate "Homepage and new windows" under New Windows and Tabs on the page. Use the menu to change the default homepage. Tip: you may also activate the settings icon on the homepage to jump to the page, or select Menu > Options > Home to display it.

1) Open Firefox and click Firefox > Settings or Preferences. You can also click the hamburger menu button on the top right and select Settings. 2) Choose Home on the left. 3) Under New Windows and Tabs, click the drop-down box next to Homepage and new windows. 4) Pick Custom URLs. You can also choose a Blank Page if you prefer.

Step 1: Launch the Firefox Web browser. Step 2: Click the Firefox tab at the top-left corner of the window, click Options, then click Options again. Step 3: Click the General tab at the top of the window. Step 4: Type your desired home page into the Home Page field at the top of the window, then click the OK button at the bottom of the window.

The Windows Settings app will open with the Choose default apps screen. Scroll down and click the entry under Web browser. Click on Firefox in the dialog that opens with a list of available browsers. Firefox is now listed as your default browser. Close the Settings window by clicking the X in the upper right to save your changes.