That, and a dev version of Tab Mix Plus, because the only truly cannot-use-if-feature-doesn't-exist for me is address bar, search bar, history, and bookmarks al

That, and a dev version of Tab Mix Plus, because the only truly cannot-use-if-feature-doesn't-exist for me is address bar, search bar, history, and bookmarks all opening in new tabs by default. It's the only thing I require. Search bar is supported in about:config, but the others aren't. So far, the beta looks good to me. But I'm dying without the rest of my extensions.