![Firefox logo](https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/products/2020-04-14-08-36-13-8dda6f.png)
Change about:blank title to blank
In an earlier version I set it up so that opening a tab opened about:blank and the title was blank via a simple Greasemonkey script:
// ==UserScript==
// @name blank
// @grant none
// @include about:blank
// ==/UserScript==
document.title = "\u2800";
Now not only did Firefox restrict what could be set on opening a blank tab, (which required me to install an add-on), the Greasemonkey script doesn't work on about:blank anymore.