New Tab (shows your homepage) per Andrej Borisenko

This add-on shows your homepage on new tabs, instead of the default Firefox start page, without stealing keyboard focus from the address bar.

Features

• The address bar is immediately focused and ready for input, just like on the default new tab page. No extra clicks needed—just open a tab and start typing.
• Built for keyboard-heavy workflows. Press Esc in the address bar to instantly shift focus to the page, enabling immediate use of extensions like Vimium-C. No extra clicks needed.
• Avoids the blinding "flash of white" when opening a new tab in a dark environment by respecting your browser's theme.
• This add-on is open source (MPL) and consists of only about 20 lines of JS. You can read the full source on GitHub, and if something doesn't quite work, make a PR or file an issue.