Firefox has always used the home page URL(s) for the initially displayed tab(s) in a new window. However, there is a startup setting which could differ.

What's the setup you want for startup, home button, and new window? (You don't need to provide specific URLs, you can just say URL-1, URL-2, etc.)

I think that you will have to use a bookmark for the homepage because as far as I know then it is not possible to open a new window without opening the homepage in this window other than holding the Shift key and left-click to open a bookmark in a new window. There is no pref to prevent opening a new window without the homepage.

Firefox has always used the home page URL(s) for the initially displayed tab(s) in a new window. However, there is a startup setting which could differ. What's the setup you want for startup, home button, and new window? (You don't need to provide specific URLs, you can just say URL-1, URL-2, etc.)

It certainly has not always used the Homepage URLs for new windows, as this is my first time dealing with this behaviour. I've always been able to open a new tab, then click the Cog to set new tabs as blank pages. I could set startup to a blank page, and then set the Homepage as custom URLs and a new window would not open the homepage. By default, I want everything to be a blank page. When I start Firefox, I'd have a blank page. A new window or tab would be a blank page. I restore session when I want to, and I load my homepage URLs when I want to.

Sorry, when you said new windows I thought you meant completely separate windows (Ctrl+N), not new tabs in the same window (Ctrl+T).

So if you want this --

(A) Home button loads "Custom URLs" (B) New tab in an existing window: blank (C) New windows load "Custom URLs" (D) As an exception to C: First tab in first window at startup: blank

-- here's how to set that up. There is one setting that you can't set precisely through the Options page:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button accepting the risk.

(2) In the search box in the page, type or paste browser.startup.page and pause while the list is filtered

(3) Double-click the preference to display an editing field, and change the value to 0 then press Enter or click the blue check mark button to save the change.

For reference:

• 0 => Blank page
• 1 => Home page(s) designated on the Options page
• 2 => Last visited page (from history)
• 3 => Restore Previous Session

The rest you probably already set on the Home panel of the Options page: