Firefox home page is replaced by a pixilated screen that looks bogus
the normal home screen appears for a couple of seconds and then is replaced by a pixilated firefox with a "click me" message. the entire image looks like it is at an oblique angle. I have a screen shot but don't know how to include it.
ప్రత్యుత్తరాలన్నీ (2)
That Click Me game is part of the Humble Mozilla Bundle promotion on the default Home Page [about:home], that loads from the Mozilla servers in the "Brand Logo" (DIV) section of about:home. A feature that was first used in Firefox 29 [IIRC] just prior to the start of the Olympic Games.
Also, part of that promotion is addressed in the "Snippet" below the Search Container on the about:home page.
If you want to block the "Brand Logo" section (and the "snippet" below the Search container) from ever being seen again, you can install Stylish and this UserStyle. https://userstyles.org/styles/104673/about-home-hide-snippets-and-hide-brand-logo
Nothing bogus. https://blog.mozilla.org/blog/2014/10/14/play-awesome-indie-games-directly-in-firefox-including-the-award-winning-ftl/
Another way to not see this is to change the Homepage from about:home to a website or even blank. https://support.mozilla.org/en-US/kb/how-to-set-the-home-page